It is the copyright owner who has to enforce his copyright. Pbase is just a host.
Do you remember the case of the photo of the finish of the marathon in NYC where one of the participants had copyrighted his face and physique, and the photographer had to pull back the poster he had made from the photo he took because he had not consulted with the participant for the permission to take a photo of him?
(I think it is ludicrous.)
I am here too!