I used to be a member of a very busy forum. It was pretty nice as although it was busy there was a sense of community as well.
It isn't dead
but dying.
Then about 10 years ago when I did a PGCE I was a member of the TES forums and they used to be so busy; I've had a look for the first time in ages and ages and it's really quiet.
Will Mumsnet ever die? And what causes a forum death?