That still should have been communicated to the mods of those communities, rather than just banning with no notice.
I'm surprised that all the scat communities were banned as NSFL without any warning or discussion here. What's up with that?
Happy to help contribute to these! I think the tag hierarchy on StashDB is one of the most cleanly organized ways to categorize porn and could be useful here.
Thanks for all the work you've put into the instance - best wishes.