* BrokenBase: When it was revealed that the anime version of Manga/TheSevenDeadlySins would be handled by Creator/A1Pictures, opinions were split considering their track record regarding a number of their previous [[Manga/MagiLabyrinthOfMagic anime]] [[LightNovel/SwordArtOnline adaptations]]. Said BrokenBase has only gotten more heated due to [[TheyChangedItNowItSucks certain changes made that don't follow the manga]].
* CrazyAwesome: While not nearly as much as the mangaka's previous KongohBancho as of yet. The world is filled with warriors capable of causing the ground to shatter beneath them, even a {{Mook}} can easily cut down an entire forest with ease. Ban and Melidolas for example destroy the tower they're in an arm wrestling match.
* EnsembleDarkhorse: Out of all the Sins, Ban and King are by far the most loved for their backstories, powers, and interactions. Shown in the first official poll where King was first place and Ban came second. Coincidentally they're also the only Sins whose backstories have been explored at this point (in stand-alone chapters no less); not even Meliodas' has been elaborated on as much.
** On the villains' side, Hendricksen and Helbram are both quite favored, having placed in fourth and ninth place of the poll respectively. In fact, they're the only antagonists who made the Top Ten rankings.
** Oslo is surprisingly popular for a bit character, having even made it into sixth place of the poll himself.
* FoeYay: Ban and Jericho. In their first meeting he strips her (yes, he wanted the clothes but it was obvious they wouldn't fit him) and, in the second, she stabs him saying "I'll crave my name on your heart" and paints her lips with his blood.
** [[HoYay Threader seems to be a bit obsessed with Gowther.]] He is really enthusiastic about fighting him and he even asks Gowther if he believes in fate.
** King has a brief moment with Ban in the Capital of the Dead Arc when he stabs Ban with Chastiefol while he was leaning on the spear with a flirtatious demeanor.
* HarsherInHindsight: In the second HighSchoolAU spinoff, there's a little skit which involves Gowther and Guila who're a student and a member of the school disciplinary committee respectively. Basically, the skit involves Gowther briefly brainwashing Guila's little brother Zeal in order to bypass her. The whole thing is played for laughs considering the nature of the spinoff. Come some certain chapters in the manga proper though, this skit doesn't seem as hilarious as it was before.
* HoYay: With Threader, a guy who appears to be a [[BadassGay badass]] StraightGay, and Gowther, an extremely effeminate looking guy that could easily be mistaken for a girl. The conclusion of their battle in the Liones capital pretty much looks like something that could fit in a romantic comedy.
** Ban and Meliodas. They were ecstatic to see each other again and Ban has the same lack of sense of personal space with Meliodas as with [[LoveInterest Elaine]]. In chapter 87 he literally said "I love ya, cap'n" [[spoiler: and he obviously doesn't want to kill Meliodas despite he is willing to do so for get Elaine back.]]
* InternetBackdraft: Chapter 79 opens with a picture of Meliodas sticking his hand under the princess's skirt. Some English-speaking fans did not like that.
* JerkassWoobie:
** Dreyfus. Sure, he [[spoiler: murdered his own brother and blamed the sins]], but his obvious remorse and love for his son [[spoiler: (and he thinks for a while said son was killed by his former best friend who now has become evil)]] make him this trope.
** Jericho. An AttentionWhore GloryHound who simply can't catch a break. Her brother thinks she shouldn't be a Holy Knight [[StayInTheKitchen because she is a woman.]] Her friend Guila [[spoiler: joins the Sins and Jericho doesn't understand why.]] And finally, the power that was supposed to prove her brother wrong [[spoiler: turns her into a horrible monster that almost killed him.]]
* MemeticBadass: After [[WhamEpisode Chapter]] [[CrowningMomentofAwesome 124]], several people are saying that DREFYUS IS A BRO!
* MemeticLoser: Griamor (the Holy Knight that makes barriers) just can not catch a break when it comes to who he is up against. The fact that he continues to fail at protecting the Liones princesses, and that his father, Dreyfus, turns out to be EvilAllAlong through what appears to be demon possession, doesn't help.
* MoralEventHorizon: The Holy Knights despite their name, do nothing to save their reputation
** Gilthunder deciding to [[DisproportionateRetribution ruin a village's economy by stopping the water flow which would've eventually led to the population dying of thirst just because he found their ale not very good]]. Turns out this was [[spoiler:simply part of his {{Jerkass}} cover; not only did Gilthunder actually love the ale, but he knew from the start that this act would invoke this trope, thereby keeping Hendricksen and Vivian convinced that he was on their side.]]
** Golgius stabbing a man he forced to poison Meliodas to save his daughter. [[spoiler: Luckily the man survived]].
** Helbram attacking the village and putting civilians in danger. His justification? "We need to make the Sins the villains for us being the heroes". Prior to that he said that his dead subordinates (who were giving him power) weren't a big deal because WeHaveReserves. No wonder why [[spoiler: Guila put a HeelFaceTurn at the end of the chapter.]]
** Galan of the Ten Commandments [[EstablishingCharacterMoment wastes no time demonstrating how awful he is]] by [[spoiler:leveling the entire capital city of Camelot, murdering countless bystanders]] ''just for breathing room'' for his fight.
* {{Squick}}: Some find some of the relationships presented in the manga to be rather squicky. While opinions differ, a common thing that is often brought up among the relationships is how they consist of characters whose appearances make them look vastly different in age.
** Some find Meliodas constant fondling of and general LovableSexManiac antics towards Elizabeth to be rather squicky especially considering that he receives little to no reprimand for his actions from her and instead has Elizabeth slowly fall in love with him. Meliodas being Really700YearsOld but having the body of a kid is sometimes added to the squicked out factor for some.
** Some find Ban and Elaine's relationship to be rather squicky as he is a grown man and she has a body of a child. This disregards the fact that Elaine is actually a fairy and Really700YearsOld, making Ban, a human, the younger of the two. Ban looking and acting like what could be interpreted as a lustful pedophile around Elaine in some scenes however doesn't help much.
** [[spoiler: When the past relationship of King and Diane is revealed in King's backstory, some found it to be rather squicky and looking like WifeHusbandry due to the fact that he's technically older than her, and that she has the appearance and the personality of a very young child. This is a bit of [[DoubleStandard a contrast]] compared to the case with King's sister Elaine as the fact that King is being also presented as a child due to his fairy form is disregarded. Furthering the contrast abit is that King's present relationship with Diane is found by some to be okay even though it is technically a complete reversal of their past with him being a child due to [[TheAgeless his agelessness]] and her being an older looking woman, a thing that also technically happens to be the gender reversal of Elaine and Ban's case.]]
** While her true age hasn't been revealed yet, some find Vivian's obsession with Gilthunder to be squicky especially considering that she's been in love with him since he was a kid, [[spoiler: and that she had taken him and Margaret hostage to prevent them from revealing the frameup of the Sins.]]
* TheyChangedItNowItSucks: The reaction to certain changes made for the anime adaptation which involve cutting out a number of things from the source manga such as characters, foreshadowing, and even whole entire events. To name two notable ones which are a ChekhovsGunman and ChekhovsGun respectively, Oslo and the pendant that Veronica gives to Elizabeth before the Byzel Fighting Festival. The two do later appear in the anime during the parts wherein they actually become relevant in the story however due to the cutting out of their initial introduction, they come off as looking a bit more like sudden convenient plot device than anything else. This is somewhat more in the case of Oslo whose sudden appearance in the anime comes as looking like an AssPull.
* UnpopularPopularCharacter: In the series, King is an extremely unlucky ButtMonkey who isn't even liked by his former fairy subjects. According to the first character popularity poll however, he's the most popular character overshadowing even the main character Meliodas. In postcard votes submitted by fans alone, he's in fourth place but combined with online votes, he's the most popular character by landslide with nearly four times the votes Ban in second place has.
* ViewerGenderConfusion:
** When Gowther revealed his true form, many were confused whether Gowther was a man or a woman due to his rather effeminate features. Some are still confused. [[spoiler:Since he was originally a doll, he technically didn't ''have'' a gender at first.]]
** When Merlin finally revealed herself in the present, there has been some confusion over what gender she is. Most of it comes from her first full body reveal which despite presenting Merlin with her rather {{Stripperiffic}} MsFanservice outfit, her breasts aren't that pronouncedly drawn big. Fortunately Chapter 84 did a better job in, ah, ''detailing'' her (complete with some {{Gainaxing}}), making her being a woman much more clearer.
** Simon who at least one person asked about his gender according to the Q&A in the first Fanbook. The answer is that he's a boy with a girly face.
* TheWoobie: In this manga most of the cast need a hug...
** Meliodas saw his girlfriend die and supposedly [[MyGreatestFailure destroyed his own kingdom.]]
** Ban tragically lost Elaine, the first person to actually acknowledge him, and it has been his personal quest to revive her. This has driven him so much so that [[spoiler: Ban was beside himself when he was offered the chance to revive her if he would kill Meliodas, his best friend and the only other person Ban cares about.]]
** Due to incidents beyond his control, King has suffered and lost a great deal. These include among things, King's best friend going mad to a point that King had no other choice but to MercyKill him [[spoiler: THREE times]], and the lost of the original Fairy King's forest along with the life of his sister. Worse yet, he is constantly reminded and blamed for all of these tragedies even when he was otherwise indisposed to prevent them.
** Gilthunder. He lost his father at a very young age and for years had to [[spoiler: remain silent about the identity of the murderers (one of them being his own uncle), while everybody blamed his dear mentor and said mentor's comrades. All of this because a Yandere threatened him and his girlfriend with death and sent monsters to monitor each of his steps.]] [[IronWoobie And he never complains or shows his suffering.]]
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