I probably wouldn't post anywhere else if this board closed down. I'm signed up to three others (Nick Cave, Einstuerzende Neubauten, Cowboy Junkies), but I only post on them once in a blue moon.
If you told me that I'd be shot if I didn't start using another forum I'd probably go to
ihatemusic. Although that place does seem to have more than its fair share of twats.