I totally understand where people are coming from talking about freedom of speech, believe me, in my country that is non-existent, so I value it highly. At the same time, freedom of speech has its limits, what are those limits? It's hard to tell.
But this is going to be one of those things that define the whole atmosphere of this community.
Are those communities being helpful or entertaining in any positive manner? I personally don't think so.
Are they a gathering place for content/people that wouldn't benefit our community? I personally think so.
So, whatever it's decided is not going to be entirely right or wrong, but it will be a step in fostering an identity.
If someone new comes in, and is checking all kinds of communities, seeing that kind of thing might turn them away; on the other hand, by knowing that type of content is welcomed, other kind of people might be inclined to join.
That's my two cents on the matter, I'd personally cut all ties with that, being something with no clear benefits and some potential dangers.