John, I think the main reason for the multiple treads is that a person or group of people get so absorbed with their own other interests or need a need to voice thier own opinions on a subject that interests them that they don't stop and think about what they are doing. At it's worst, it gets like a loud night in a session where the chatters just talk louder, totaly oblivious of what effect they are having on the music.Jeri, I hope they come back, but I don't think many people here care. Slowly but surely, the nature of the forum is weeding them out.
I just wish more people would realise that and care about it. Having said that, and I could be wrong on this, I did get the feeling before the exceptional circumstances of 9/11 that there was more willingness from some to try to compromise a little and help try to make it as good as it can be for all.
Jon