I didn't add a whole list so here it goes:
Anime fans who blindly like every single series no matter how bad it is.
Anime haters who blindly hate anime just because of the fans and/or judging the medium as a whole based on a single series or movie they watched one time.
People who complain about being "friend zoned".
People who defend Batman v Superman and Suicide Squad.
The Watchowski Brothers
Sword Art Online
People who swear a lot
Biased IMDb ratings
Having to leave BioTube