Anyone using Citadel in production

> How stable is it?

Used for a year and a half, no issues, never crashed.

How active and helpful is the community?

I loved dothebart's response: http://uncensored.citadel.org:8080/readfwd?page=85

Would you recommend using it?

Yes, easy install (on Ubuntu anyway), handles multiple domains, easy admin UI (ugly but works great), has this odd Rooms concept but overall can't complain.

Also, does it put any excessive load on CPU/memory? (asked in context of Citadel's code quality)

Not that I've seen. Spamd, Tomcat and my game server use more RAM/CPU and that is low.

If you're into this style (and BTW, I was one of original Seattle Citadel users, back in 1977, when Cynbe-ru-taren wrote it!!), you should check out Synchronet. It's an old BBS system, but still actively supported and used. It's in fine shape, and compiles great under Ubuntu and Debian, among others. There are still a couple hundred Synchronet BBS's around, mostly via telnet these days, but a lot also use the web interface.

Tell them Fat City BBS in San Diego sent you. :-)

http://www.synchro.net

thanks,

bruce