Seeing as we already have a threads channel another good idea for a channel would be a donator + channel. Lately many people have been discussing elite exploits in the box, forgetting that anyone 35+ rep can see the box. A private channel for donator + would help this problem.
However, this could also cause confusion in chat and cause one channel to be dead. So an even better option would be the option to hide your shouts to anyone below donator, although I do not think this is possible to implement.
Just an idea, I know it has many negative things with it, but it would help to keep our secret things secret.