Whilst IANAL and YMMV, the simple answer is that copyright certainly does apply to postings on the internet. It might be difficult to do much about infringements, but it is not impossible. Another website I frequented had this problem, and after consulting relevant legal people, came to the conclusion that the posts made by the users were the isers' intellectual property.
This message has been edited by Modulous, Sun, 23-April-2006 04:45 PM