itadmins.org is now on freenode at #itadmins . That said, I am afraid I have to remove mibbit to prevent abuse. But we are admins, are we not? I recommend using xchat or irssi to connect. I will try to be available from time to time. If you are interested in discussing the site, plae email me at firstname.lastname@example.org and we’ll schedule a time.
I hope to integrate this into a few projects I am planning in the near future.