nitpick
Someoen who, rather than attack the merits of your argument will bring up completely irrelevant shit, like how you mispronounced a word or, in the case of the internet, typed a word wrong.
Synonyms for nitpick
On this page, you will find 30 slang terms related to nitpick. Some of the top words include: asshatted, chode, metafiltering, yeah not so much, talking trash, and 25 more.