MusicBrainz IRC Channel
All users of the IRC channel are expected to follow the CodeOfConduct
Many of the MusicBrainz developers, as well as other users who want to chat with them, can be found on the #musicbrainz channel at irc.freenode.net (irc://irc.freenode.net/musicbrainz). References to IRC on the Wiki generally refer to this channel. As in many communities the chatters in the channel have developed their own MusicBrainzSlang. Also, you may want to take a look through IRCRegulars to find out who's who on IRC.
Internet Relay Chat is a type of instant messaging network; you will need an IRC client to participate, but even without one, you can browse the IRC logs (there is only an extremely crude chronological index by days, but you can also look at today's log and yesterday's log).