I hope you're being devil's advocate, Peter, and I hope none of the others follow your lead. You and the other original members set up and some of you continue to feed a group which I enjoy paticipating in.
To my mind there is nothing wrong with the content of the NG as it is, there is nobody who posts OT or not that troubles me. If a post doesn't catch my interest, I don't have to read it.
I operate at home on 26.4k and my bandwidth is quite adequate to deal with the volume of messages, so I don't buy the theory that the OT messages are any sort of burden.
I would be very sorry to lose your input, and I feel the loss of others recently has been bad enough. I do think there is plenty of room for others to post on-topic and would urge them to do so. In this way they can contribute and enrich the group, rather than just snipe.
Regards