I sent him an email, to the one he posts on the circuit bending Yahoo! group with. I don't really expect a reply. It's odd that he's perfectly civil and indeed quite constructive in his discussions on the Korg Poly-800 list - even with me - but still seems to be really angry about something I posted over two years ago.
I can't even remember what I posted that upset him so much. I kind of wish I could, but I don't really care. Not even enough to create a fake account to search back through the archives (which are members-only).