The JUnit mailing list is the place to go when asking about questions not on the FAQ. However, being a moderated list, it can sometimes take a long time for the emails to work their way through the moderation queue. I’ve been stung a few times myself; an email I sent once took 5 days to finally get posted. This makes it very hard to hold an intelligent conversation via the list, as continuity gets broken.
To help fix this situation, J. B. Rainsberger asked for help. Remembering my previous problems, I volunteered, and my offer was accepted. It’s nice to be able to help out in something I believe in, and I’m sure that when I mention my special responsibilities at dinner parties, people will be awed and amazed.