Does anyone know the lagal position of my forum where a request has gone in to remove a post about someone.

The thread in question is the street entertainers of my town. Listed in there by me are all the entertainers performing in my town. I have included links to their utube videos and web sites.

I added someone the other day and he has asked me to remove him from the system. Do i need to do this? There is a clip of his utube video and just a bit saying who he is (stage name etc).

This also brings up the subject of posts by other people in the town ? If they post something and i then get a request to remove it, do i have to (eg a local plumbers details in the services section).