Welcome to the haxxed.com Citadel message board. Citadel is a line of BBS servers with a long and storied history.
All users are able to freely create rooms, just like on a classic Citadel BBS.
The classic terminal client is available via ssh by connecting to bbs@haxxed.com
If there is interest, full support for classic Email services can be enabled, including IMAP/POP3.
Don't be a jerk, and don't abuse the system.
Welcome, Google was threatening to take away my free G Suite that i've been hosting my email on forever, so I was evaluating moving it all to Citadel as it seems to be the nearest open source equivalent that isn't a nightmare to set up. But Google caved and gave us all "G Suite Legacy Edition" so there's no longer a pressing need for that.
I'm still looking at doing things like gating Twitter into Citadel rooms. There's an incredible amount of functionality packed into this little server. :)