The policies and ideals of the discussion channel are the same as the website; quality content and conversing, respect for other users, and no spamming. Slightly off-topic discussion is generally acceptable. The channel isn't busy enough that there's always someone talking, so don't be surprised if you try to start a conversation and no one responds. Leave it open and you'll see activity, though we're most active during US work hours.
New contributors are always welcome on Bitmia. If you are the author or otherwise involved with a story that was submitted to the site, ask and someone will invite you. If not, offer some good links or thoughts on a story and someone will likely invite you so can post them. Alternatively, share a link to your homepage or public profile (LinkedIn and Twitter are popular choices) so people can see you're not a spammer.
To participate in the discussion, join the #bitmia channel on irc.freenode.net through your web browser or with an IRC client (recommended).