Before you object, yes I know everything is gameable. I'm just throwing it out there. We have karma systems for async discussion, and they work at least somewhat well. Why not synchronous too?
There is no such thing as sorting messages by karma for synchronous chat but perhaps other analogues could be found. Maybe in the same way that Slashdot has "browsing at +2" you can choose to receive all messages or just messages from higher karma people.
In response to the bury, let me clarify. On HN, upvotes and downvotes allow a comment to stand on its own merit. Using amassed karma to determine the quality of an individual is dumb. Since IRC's nature is instant and ephemeral communication (yes, often logged, etc), it makes little sense to use a karma system for IRC. Individual comments can't be filtered or buried (they're instant!) so the only other option would be to filter people individually by karma. We call that a popularity contest, and THAT is dumb.
I had an idea for a bot that would allow temporary, rule-based bridging of conversations in participating channels. I never got around to coding, but I did blog the concept in more detail: http://mmol-6453.livejournal.com/213900.html
Is this idea the right way round?
so if you can break the message length limits , that would be better