I think it goes through phases. Sometimes it's totally inundated with old-time inside jokes, which is annoying, but if you ignore it completely, you miss out of some really thought-provoking discussion and good information. Just be ready to back up your opinions, and to take stupidity in stride. People who attack you JUST because your opinion is different and can't have a discussion about it, frankly, are not worth your time. I don't really find the OT board to have a "creative climate," heh. What, nobody argues here, is that it? And just because the Main Board is a Broadway board doesn't mean you have to be a performer to be accepted there; plenty of us pursue endeavors in all corners of the arts. I've never found people to be looked down upon because they are not or do not aspire to be performers.
A work of art is an invitation to love.