The AOL chatroom was forced to close by AOL. I don't remember the specifics but if my memory serves me right it was something to do with children. That chatroom was always touted as an adult only chatroom yet teens often would join in. I believe some rather unsavory characters were in there seeking some underage folks.
It's unfortunate but I do know that Bob is working very hard to get it back up and running. In the meantime there are several other chats that occur like the one here on TMF and I believe there's one or two through Yahoo and there are often rooms in AOL still like... TK regulars, Ye Old Tickling Room, Ticklish, and other things that reference "THAT" word.