The "thank you kind stranger" shit, the comment threads that build on some reference or pun where everyone adds some kind of variation, the replies that are just a subreddit name like r/rareinsults and r/whoosh, all of it is fucking annoying. It's like watching poorly socialized people attempt to make some kind of "cool kids club".

I'd like to add a point that u/jarrodnb brought up. Reddit's attachments to memes and sayings lasts for far too long, which ends up making them unfunny, namely "oof", "yikes", and "le" ("Doggo" and "pupper" fall in there too, but they weren't funny to begin with). Expanding on what I said in my reply to their comment, it's a weird communal flocking to what's trending in an attempt to be a cool, trendy person; but it's usually after the place the meme came from has moved on. It's wanting to be hip without actually expending the effort to find and participate in the source.