This is the same behaviour with reddit users complaining about reposts and spamming repostsleuth bots...
Not everyone is chronically online and knows every meme since 2001.
Just downvote and leave...
Can I hazard a guess that you're an ex redditor? People try to be nicer to each other here. I'm a reddit refugee myself and it's sometimes hard to change habits but this place is nice and it's worth it. To me this whole migration kerfuffle seems like a rare opportunity to be more thoughful in my interactions with people online. So far it's making for a much nicer experience.