I'm "steeling" this thread because it almost answers my question...
Is there anyway to enable so that only admins can change a users signature?
The best thing would be if the text area was disabled if a non admin looked at it's own profile page.
I know that you can use the enable tag in HTML but I have no idea if its possible or how to add it in php.
I guess with some sort of IF.
Anyone interested in helping me out?