The idea came about from looking at things like the various file sharing sites around and it formed in my head that if I were downloading song tabs for classica

The idea came about from looking at things like the various file sharing sites around and it formed in my head that if I were downloading song tabs for classical music, then the thousands of other people downloading the same thing would probably share some interests with myself. I then continued to think that if there was some way I could communicate with those people then we could share more files relevant to our interests. I don't think I'm solving a problem, and I'm fairly certain collaberative chat with file sharing already exists (I'm thinking Campfire / Basecamp but I could be mistaken). I believe that this kind of thing would generate natural communities around files being shared. People would be able to chat anonymously and register their own account (reddit / HN style i.e. very quick registration) and manage their uploaded files.