Sounds good to me, nigel.
I started a thread about videos because almost every other thread - especially those polluted by Polished - involve that topic. The thread didn't go very far so the interest in dance videos per se is probably limited.
Folks need to remember that we're on a message board and that, people being what we are, discussions will wander.
I would hate to see the establishment of hard and fast rules trying to limit the topics that can be introduced in a thread. Other message boards have such restrictions which, I believe, discourage open and honest exchanges.
Jonathan does a good job of letting us post what we want and have at each other as we may. I suppose that extremely harsh or profane verbiage may warrant some interference but I believe that the board can be self-policing with regard to such material.
After all, considering the freedom which we're allowed, I think that we do a pretty good job of keeping threads on track; the "Dance with Me" thread did return to the movie.
Any conversation which begins in specifics will eventually spread to generalities. These, in turn, will encompass other specifics and the cycle continues.
jj