Community mention spam from Microblogs

So, this meme.

tl;dr Mastodon users occasionally spam mentions and Lemmy (and probably Piefed) ingests them all and makes the post across all of the mentioned communities.

Sucks, right, because on the theadiverse, you're not actually able to do that so easily.

Basically, it's because Mastodon mixes mentions with addressing. Every mentioned person gets addressed, even though sometimes you don't mean for it to go into that community.

So what if Lemmy, Piefed, Mbin, and NodeBB made it so that only the first matching community gets the post? We can already tell which posts come from threadiverse software and which don't (because we use audience, Mastodon doesn't.)

Just an idea, I can't speak for the other softwares.

So what if Lemmy, Piefed, Mbin, and NodeBB made it so that only the first matching community gets the post?

Not sure about the others, but doesn't Lemmy do that already (only applies the first matching community)? I've been out of the loop for several months, so maybe it changed, but I thought it already did that?

If it's not an issue currently, then that's even better

At least on NodeBB we only post to one community, but it'd still happen even if other communities on other instances were mentioned first, so it could still be abused.

E.g. mention four communities on four different instances, get posted to four communities.