He puts huge sections of text under spoiler tags. Like, ridiculously huge sections of text. Like the entire example, even. Even — especially — if the entry is only partly a spoiler, or could be rephrased in such a fashion so that it would no longer be a spoiler, or that the spoiler could be adequately covered without covering a massive chunk of text with spoiler code. Even if the example is from an example that everyone knows the 'spoiler' to anyway, or an example to an entry that announces that it's going to be full of spoilers from the start. And sometimes he'll unspoil certain unnecessary words at random to really break the flow of the text. Fair enough That Troper's trying to avoid spoilers, but the way he does it usually ends up being self-defeating because people have to find out what the spoiler is anyway if they want to see how the example's at all relevant to the page.
Or alternatively, he blithely spoils plot developments without care for who has seen them or hasn't, like the fact that everyone in "The Mousetrap" is actually a vampire.
Sometimes when he's feeling particularly Genre Smart, while he's Complaining About A Show He Doesnt Like (or a fandom, or a character in the show, or what have you), he'll be sure to add Your Mileage Could Vary just so he can get away with putting his negative opinions as a bullet point to every trope example and act like a large number of people share his opinion, whether they actually do or not.
He modifies pages so that their grammatical syntax is lost, and does not explain why the changes are necessary.
He makes snide comments in the 'edit reason' box that are less about explaining why he felt the change was necessary and more about smugly asserting that he's so much cleverer than the person who made the original edit.
Because he's such a Mmmmagnnnificent Bastard with capital MB like a degree. He was schooled in awesome. You were not.
That Troper censors out entries he doesn't like on It Just Bugs Me Okay, YMMV, and Untamed Mass Guessing pages, and because That Troper knows better than anyone what should go on a subjective page, That Troper does so without giving a reason. Certainly That Troper is under no obligation to edit said entry for better relevance and accuracy, or to move a trope from the main article to the appropriate page.
He claims how his favourite show is so good that it Kill The Genre until his another favourite show revive it.
He is thoroughly convinced that all fan fiction is canon. And he'll throw a fit if canon starts to contradict his favorite fan fictions.
That Troper inserts spoiler tags in what might be otherwise oblique references only understood by familiar viewers, in order to really paste red flags over the phrases and names to look out for. After Example Pimping enough variations into the broadest range of articles, any reader will get more clues that the show would've revealed.
He is a pathetic wannabe radio jockey who tries to cover up his utter blandness and lack of personality Laaaaaaarge HAM!
He only watches anime and plays Japanese games, unsubtitled, of course. He finds Japanese culture so much more appealing than his own. And he thinks everybody else should too.
He litters pages with Too Much Japanese and thinks every page should have a Japanese title referencing something from an anime or manga he likes, no matter how obscure.
He doesn't bullet correctly.
He insists on capitalizing every pronoun, making an example of Himself for some reason He or She or They cannot figure the hell out because there is no reason for Him to do so and It is really annoying when You are just trying to read the wiki.
sometimes he doesnt capitalize anything at all or even bother to use punctuation
Or He Capitalizes Every Word As If It's Just A Really Long Title And When He Gets Called Out On It Says "You're Trampling On My Freedom Of Expression!!!" (Yeah, Well, You're Trampling On My Eyes)
He never resists inserting the notorious meme The Candle Jack Man, and always leaves his sentences hanging like thi because he finds long dead memes hilarious.
He thinks his favorite shows are God's gift to humanity and are a cure for cancer, and deserve to be shoehorned onto every page in the wiki. He thinks your favorite shows are the worst shows ever to appear on television and you're a horrible person for liking them.
Recently, he's talked about the latest developments in his favorite shows using the words "recently", "currently", "nowadays", etc. so that in a couple months his posts will be completely dated and obsolete.
He's a snarky asshole to new members who may not understand how tropes work, and belittles them every time he gets.
He actually worships the gods in the Troper Pantheon, but wishes they'd delete all those pesky ones that aren't either from an anime or video game series.
He threatens to quit Tv Tropes whenever he thinks a change has Ruined It Forever, but never actually does (though we all wish he would).
Standard Flame Retardant rules apply. Do not name any names, insinuate with the insinuators, or add to the article unless it would contribute in a constructive fashion. Especially you, Adrian. Or you are, in fact, That Troper or the Adrian in question, in which case, the wiki apologizes for your misfortune.