Thanks. It turned out they were (but not listed in the backoffice user list), and I was able to delete those lines from the database directly using MyPHPAdmin.
Thanks. I looked at Auto Group Join, and am considering it. Registration Groups hasn’t been updated in a long time, so I’m a bit leery of that. I’ve also tried bbPress Private Groups, but I’m finding forum accessibility to be oddly inconsistent.
At the moment, I’m looking at:
1. Just BuddyPress – create lots of overlapping single-purpose groups.
2. Just bbPress & Private Groups – forget about the social aspect and just use structured fora.
3. Social media – give up and use a Google Group, Google+ community, or even [gulp] a Facebook group.
