The current IRC channel #bitcoin-dev on freenode is increasingly becoming a user support channel.
I propose that we recommend (and list on
http://www.bitcoin.org/contact ) using #bitcoin for everything
not related to development and highly technical issues.
#bitcoin on freenode is largely dead, and appears quite usable for new purposes. a few (older? modified?) clients use #bitcoin for IRC seeding, but these clients get less frequent over time.
The "gribble" bot recommends using #bitcoin-discussion, but using #bitcoin seems simpler and more direct (and less to type).