Well, I might start another one sometime but this thread has already answered the questions I had when I made it - which was : what is the age and sex distribution on musicbanter?
That question might come up again later when old members have gone and new members have joined up and if I'm around I can do it again then.
My prediction for the future is that this distribution between age groups and sexes is fairly stable and won't change much. If something had to change, my guess would be that there could be more young girls on the site in the future.