I'd prefer to keep all lang communities on topic. E.g. I occasionally block and unblock !c/programmer_humor when I want to read technical news or just have a laugh. If memes crossed into all local subs, then the noise-to-news ratio couldn't be customized as easily.
Although I suppose tagging posts would be a better compromise.
Does Lemmy support tagging posts, or filtering feeds by tag yet?
My thoughts exactly. Tagging them (if possible) is OK, but kind of annoying to need to go to all these different communities and filter memes when there is already a dedicated community for programming memes.
It also may turn off new arrivals that may be looking for a more serious community, and think all/most of the content is memes.