The number of top comments that are just a tired, useless joke... Especially annoying in those posts where someone is asking a serious question, and the actual answer is buried under the karma farm.
"This. So much this" and "take all my upvotes" are the two worst in my opinion. They both literally add nothing to the conversation, they are not funny and they are certainly not original. If you agree with a comment just use the fucking the upvote button.
I feel like the only time “this.” is reasonable is when you add something meaningful after that statement. Whenever I say “this.” under a comment, I don’t just leave it by itself. I add some extra stuff that I think would be useful or important to the conversation, or I expand on the previous commenter’s point. Never say “This.” by itself.