It's par for the course Cornish, a band member or manager shows up, posts a bunch of links to the band's music etc., and then disappears mostly for good.
Seen it 100's of times myself...the dead giveaway is a link in the signature of a new arrival. Most people won't click on it anyway, our good members will wait to see if you are interested in chatting and getting to know them first.
People that are keepers or stay a while usually get to know the place first, make a few friends then post their band information in One section specifically designed for that purpose.
Time will tell, you may prove me wrong but I would bet you have posted your band info in more forums than just ours...