Will
I think this is completely acceptable, though I can't speak for the administration, I think it's only blatantly commercial type posting, that get's frowned upon. I think we want to encourage knowledgeable folks like yourself, and I remember that you left the original Yahoo group because someone took issue with something you had posted. The rest of us were the losers in that exchange.
You can e-mail most any member by clicking on his or her name to the left of the post and following the link to their e-mail address.
Ricardo