I've noticed this happening more and more lately, that joke/meme posts have gotten posted in communities meant for more serious posts. Since there are a number of communities meant for meme posts and other less serious content, it would be better for these posts to be made in those communities. Is there anything that moderators can do about this? Given how I've seen these things go in the past, I'm a bit concerned that the communities for serious discussion could end up as just another place for memes, which would be a detriment to Lemmygrad as a whole.

Given the downvotes on this post about Marx's birthday, and this comment, which even got upvoted once.

The user Argonaut has posted nothing but seemingly random and nonsensical content into a new and otherwise empty community, the description of which strikes me as rather bot-like.

I've noticed that anything that so much as mentions China very quickly ends up with at least one downvote, sometimes more. As far as I can tell, they're just downvoting anything related to China as a matter of principle. They're certainly not bothering to ask any questions or investigate further. Should this sort of behavior be allowed?

I've noticed a lot that people will downvote something, but there's no mention in the comments of why it was downvoted. If someone sees a genuine problem with something, then just downvoting without saying anything is unhelpful, so would it be possible to implement a system that would require commenting with an explanation of the downvote in order to do so?

Doesn't seem like there's much of a pattern to the downvoting, and they're not leaving any comments about why they're downvoting, so it makes it hard to tell if someone has a legitimate problem with a post, or if it's just that one (presumably) person again. Is there a way to block them somehow, or is that impossible?