I’m thinking that things are getting to the point of maturity that it’d make sense to have a general rule about this.
Something like:
You’re expected to do a little research to see if your new community is very closely aligned with an existing one, and if so, provide at least some statement as to why you’re making yours or what’s different about it.
It’s not to prevent people from making their own communities at all, it’s just that it actually helps clarify the promotion of a new community while also helping the community ecosystem.
From what I can tell, !coolguides has a fairly rigid set of rules, with a specific distinction made between guides and infographics. That’s great, I like when moderators take an active role in curating the content of their communities.
But I would guess that !coolguides is possibly a response to those rules. Basically if your post got removed from the lemmy.ca community because it was technically an infographic, you could post it to sopuli.xyz community instead.
That’s my understanding of the ecosystem, without having spoken to any of the people involved.