I apologize for abruptly dropping off IRC. #scheme-live had good
discussion but we did not really end up doing design work there; #scheme
is in the same boat.
IMO the most important reason to be on a chat channel is for lightweight Q & A. I often want to ask you to explain something but don't want to bother with sending an email, and provided you are available, the quick turnaround for clarification is unmatched.
So please come back to at least one channel!