* AmericansHateTingle:
** Averted with UsefulNotes/AssociationFootball. When TheWorldCup was on, it was heavily trended even among American twitterers.
*** Brett Erlich [[http://twitter.com/bretterlich/status/17345184766 played this straight though with this]]: ''"Literature/{{Twilight}}'s like soccer. They run around for 2 hours, nobody scores, and its billion fans insist you just don't understand."''
** [[https://sites.google.com/site/tweentwitterclient/ Tween]], a Japanese-developed Twitter client, is popular in its home country and is one of the top downloads on [=SourceForge=].JP, but outside of Japan, it's obscure at best and dismissed as user-unfriendly at worst.
* BrokenBase:
** The upgrade to API 1.1 and the "Display Requirements" that came with it has not made some people, especially developers, happy.
** Subtweeting, or replying without mentioning the user you're replying to. While some find it amusing, others find it exceptionally annoying, especially if one isn't following all participants of the conversation.
** In 2016, rumors sprang about that Twitter is planning to raise the character limit from 140 to 10,000. Some users hope it's true, due to 140 characters being a very limited space in most languages, others think it's excessive and could, among other things, open new doors to harassment and completely change the dynamic of Twitter, arguing that those who want to write a lot should just use sites like [[http://twitlonger.com Twitlonger]] or make proper blogs instead. Then there are those in the middle who agree that 140 characters is too small but the increased limit should be something not so radically high.
* CriticalResearchFailure: ''Twitter'' has always displayed what the trending hashtags are on the sidebar, but starting around ''2015'', they've actively started to add their own comments to the hashtags displayed in the sidebar... However, the sheer number of times they've commented on a hashtag ''without checking what the Hashtag being discussed is actually about'' is staggering. This can get so obnoxious at times that some have actively started setting their home regions to other languages so they don't have to put up with their occasional stupidity. [[note]]Twitter doesn't comment on hashtags in other languages, instead using the system from before they started their comments up.[[/note]]
* EnsembleDarkhorse: Pretty much everyone is following one or two Horoscopes (usually and obviously, their own).
* FanHater: There was once a "Ban One Direction Fans From Twitter" trend. Yes, because a particular fandom is totally a higher priority than issues such as harassment or bigotry.
* GermansLoveDavidHasselhoff: Brazilians are notably fond of Twitter and frequently hijack the trending topics with things like #brazilloves[insert popular american musical act such as Music/JustinBieber or the JonasBrothers].
** Notably, "[[http://www.nytimes.com/2010/06/16/nyregion/16about.html CALA BOCA GALVAO]]", a complaint against an obnoxious sports announcer that somehow became a campaign for saving endangered birds.
** Japan is quite fond of Twitter as well; many users are big enough fans that they take features such as real-time tweet streaming very seriously. It also helps that the Japanese language allows squeezing in the same amount of information in less characters than in most Western languages, allowing one to practically write a short essay in 140 characters.
* GoddamnedBats:
** Spambots, who once in a while will randomly reply to one of your tweets with anywhere from offers for free electronics leading to a fradulent link to nothing but a link. They're usually suspended within a few minutes, not that it matters because new spam accounts are always pouring in. This is due to the fact that Twitter, owing to its roots as an SMS service, has no human verification measures during its registration process; you can start using your account even before verifying your email address.
** Reddit favorite bots. They take the form of accounts with the username "Reddit''''", have their bio as "'''' of the topic in Reddit", and will randomly favorite tweets with matching keywords. Most if not all users agree they're a nuisance and just report them for spam on sight, much like spambots.
* HypeAversion: Even people who have never used this website have had their view of the number/pound sign # changed forever.
* HypeBacklash: As with any website with social networking elements, it gets quite a bit of this.
* InternetBackdraft:
** Twitter revised their blocking mechanism to allow someone a user has blocked to follow that user. This came under heavy fire, with millions of users complaining about the change in their tweets, to the point where Twitter reverted the change. However, it should be noted that although you can't follow blocked users, you can still see the tweets of public users even if they've blocked you by logging out.
** The token limit on third-party clients has been a source of ire for many users. The popular Windows Twitter client Janetter, for example, can no longer accept new users because of this. Many clients have simply stopped development entirely and removed all download links.
*** Meanwhile, [=TweetDeck=] (Twitter's own client and thus the only one without a token limit), removed the link to download the Windows version from their site entirely in order to force people to use the browser version (or the Windows 8 Twitter app which is pretty awful).
** A lot of people are livid over the abuse report form outright saying that unless you're the one being harassed or you have legal right over that person, the issue won't be looked at. So essentially BystanderSyndrome is ''enforced''.
* MemeticMutation:
** The hashtag, popularized by Twitter, is often used even outside of Twitter.
** same[[labelnote:Explanation]]Used when agreeing with something the user replies to or retweets. Sometimes it's used in reply to things that wouldn't make sense to agree with, on purpose.[[/labelnote]]
** Subtweeting[[labelnote:Explanation]]Replying to a tweet, but not attaching the @-username of the tweet. This has [[DiscreditedMeme not been well-received by some users]], as it often creates needless clutter especially if some of the participants of the subtweet conversation is not being followed by the users seeing the subtweets.[[/labelnote]]
* MisplacedNationalism: You'll find this quite a bit. We'll keep it at that.
* NightmareFuel: Occasionally, you'll find a spambot who quotes one of your past tweets. That's just creepy.
* RelationshipSue: Parodied with Edna Fry, wife of Creator/StephenFry [[DontExplainTheJoke (who is gay)]]. She's attracted a huge fanbase - [[ActuallyPrettyFunny primary among them being Stephen Fry]].
* ScrappyMechanic:
** Version 1.1 of its API. Among other things, it only allows clients to perform 15 API calls per 15 minutes (as opposed to the 150 or 360 calls per hour in 1.0), and all clients under 1.1 must conform to a series of "display requirements" that were not part of 1.0. This gives developers less freedom in how to design their clients, and users, particularly heavy users on mobile devices, will experience problems adapting to 1.1. Worse, every client is bound to a limit of 100,000 authentication tokens (or 100,000 users, but some people have more than one account) before requests must be made to Twitter staff for more tokens, effectively forcing a cap on the maximum number of users each client is permitted to serve.
*** As of July 2013, Twitter has [[https://dev.twitter.com/terms/display-requirements-diffs backpedaled]] on some of the Display Requirements. Some of these changes were to reflect the existence of mobile Twitter clients; not everyone can fit a user's display name and @-username on their mobile device.
*** In the West, most people were either unaware of the API change or didn't care, but [[ValuesDissonance in Japan, the change was considered significant enough that "API" trended the day that API 1.0 was cut off]].
** Putting your account into protected mode, which only allows users already following you and users whose follow requests you approve to read your tweets, is a useful way to preserve your privacy. However, it will not allow you to interact with users not following back, unless they send you follow requests or have a non-Twitter means of contacting them.
*** For the longest time, protected users' tweets would not show up in searches, rendering the ever-popular hashtag function near-useless to such users. However, [[https://twitter.com/Support/status/373205208664272897 an August 2013 update]] finally allows protected users' tweets to show up in their own searches and their followers' searches.
** Direct messages can only be sent to people following you. While understandable in that it prevents users' DM inboxes from being filled with spam, it also means you can't have a private conversation with someone not following you (back) unless you have an external means to do so (e.g. instant messaging). However, an udpate in October 2013 allows users to, if they wish, enable [=DMs=] from anyone following them, though this comes with the risk of receiving spam messages.
** Another October 2013 update brings inline image previews to web Twitter and official Twitter smartphone apps. This wouldn't be a problem if previews were ''optional''; while a later update to the official Twitter apps allowed toggling them on or off, users of the Twitter website (rather than third-party clients) are stuck with the previews. What makes this feature a concern is that this feature can be abused to [[{{NSFW}} spam pornographic images]]. While some users are courteous enough to mark their accounts as "containing sensitive content", not everyone who posts such material either knows or cares.
** Twitter's 100,000 token policy effectively killed off third-party clients for good, which was probably what it was intended to do.
** Twitter becomes a pain in the ass to use when you actively use more than one account:
*** Twitter's official apps (other than [=TweetDeck=]) will only allow you to favorite or retweet with the account you're currently using. If you're using one account, but want to RT content you see to another account, you have to switch to that account and find that tweet (either on your timeline or through a search)--a sequence of actions that can easily take 30 seconds just for a simple command. Some third-party Twitter clients alleviate this by letting you retweet or favorite a tweet you see with any account that's connected to the app, but very few of them exist.
*** [[https://en.wikipedia.org/wiki/Two_factor_authentication Two-factor authentication]] -- Log in with your account, and either use one of the mobile Twitter apps or a code sent via SMS to your phone to complete the login process; an extra layer of protection if your password gets compromised (and also a way to be quickly alerted if someone tries to log into your account). The catch? You need a cellphone number to use this feature, even if you do login approvals through apps rather than SMS. Furthermore, each phone number can only be tied to one account at a time, so if you want to enable 2FA for multiple accounts, you're largely out of luck.
** Related again to API, the poll feature. Those on Twitter Web Client as well as official mobile clients can use them just fine, but woe betide you if you are using a third-party client, or even the second-party [=TweetDeck=], as polls are not supported in those clients. There is no indication in those clients that a tweet contains a poll, and since most users use official clients, they may not be aware of this and as such will not indicate accordingly whenever their tweets contain polls.
** The "While You Were Away" mechanic introduced in the second half of 2015. In theory, it can be good, as it selects some of the tweets you might be most interested in seeing and moves them up to a section above your main timeline. However, many people have complained about the feature's poor implementation, as it frequently causes the tweets on your main timeline to be presented in the wrong order or to be missing entirely. That doesn't even get into the fact that the option you're given to turn this feature off doesn't work.
** Previously, if you blocked a user, the only indications they would see are that they're inexplicably not following you anymore (if they were following you) and that they receive a "you've been blocked" notification if they try to follow you again, things they would only notice if they were following you or tried to follow you. Now, blocking them gives the blockee a "You are blocked from folllowing ''(user)'' and viewing ''(user)''[='=]s tweets" screen when they attempt to view your profile from an official Twitter client, making the block more obvious since they don't have to follow you anymore to find out. Some users, when blocked, will take screenshots of the block screen and post it, either to complain about it or mock the person who made the block, making a setup for {{Flame War}}s and other kinds of harassment.
* TheyChangedItNowItSucks: The new retweeting system has been unpopular with the userbase, mostly since the retweets can no longer be edited to add personal comments. Of course, the old RT system still works just fine.
** [[RuleOfCautiousEditingJudgement Let's just say]] that old users were not happy in changing the Fave stars to Like hearts in 3 November 2015.
** There's been a rather large backlash towards the change in how timelines are organized, going from chronological to using a popularity-based algorithm. Many have pointed out how this would cause countless users to be overshadowed by big-name brands & celebrities, with small businesses/creators/accounts being left in the dust.
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