I actually thought about contacting the server owner about this trend, to see if they could curtail it. I’ve seen at least seven of these communities pop up and disappear. It’s getting annoying.

I'm not sure it warrants it? People can post whatever they want in their own communities, and I didn't see anything against the rules.

And (most importantly), I've never seen it linked to solicitation or spamming. But if it is, that's a different story.