I'll go first. Mine is that I can't stand the Deadpool movies. They are self aware and self referential to an obnoxious degree. It's like being continually reminded that I am in a movie. I swear the success of that movie has directly lead to every blockbuster having to have a joke every 30 seconds
For these types of threads, I usually upvote things that are actually hot takes with some justification or unique insight. People that post an extremely popular decision or just insult something that a lot of people see value in get downvoted. Mostly it's moderately common takes or unusual opinions with no elaboration, so I don't vote on those.
This is one of the things that killed the unpopular opinion subreddit, and made Reddit in general so annoying. The upvote/downvote is not an agree/disagree button, it's for promoting valuable discussion and hiding the opposite