@feditips
I tried this out with a Guppe group a while ago, but I went back a few days later and it had disappeared. I'm assuming they do that after a particular period of inactivity - about idea how long that is? I can't find any info on that.
The group I had in mind would get bursts of activity every month or so and quiet in between, rather than sustained activity every day. Is there a better option for that sort of situation?