Triple ditto on mixedmartialarts.com...if you
are interested in actual fighting.
While it isn't moderated per se, if an individual
is out of control and cusses, etc...they will
be banned. So it is mostly tame (except
for the otherground forum which quickly devolves
into sex and religion on almost everything, but
that's why it's there...to keep that crap out
of the martial arts forums).