tantekis there a directory of Known instances? like this directory of Mastodon instances? https://instances.mastodon.xyz/ (e.g. that one could add their own Known instance too?)
[kevinmarks], [aaronpk] and [cleverdevil] joined the channel
[chrisaldrich]I suspect there are some Universities running a "group" version of Known that people could join. And of course the original version of withknown.com allowed one to sign up for subdomains.... But I think they were mostly modeled as standalone sites.