A superficial glance at MN and, particularly picking certain sections doesn't necessarily give a very rounded picture of MN.
I know we were 'invaded' by a techy group (sorry tech, can't think of a better way of putting it) who changed their tone rather rapidly and some of them decided that they rather enjoyed the argy bargy that was allowed on some threads - the AIBU in particular.
It is quite amusing though that they can't swear 
I also find it interesting that MN allows people to post immediately upon registering and yet a forum like that feels it can't.
Is netmums really like that
I never saw any threads like that and got so put off by tickers and general tone that I gave up.