It's not that ARFcom is the best board, it's that it's such a big board.
I'm not being cynical, just honest.
When people need help on this board, lots of people rush to help....but really how many do? 1/100th of the membership? 1/1000th? Less?
Mixed in with all the good, decent folks on this board (and there are alot of them and I have experience with their good nature), are an equal amount of selfish turds, trolls, nitwits and goofballs. Look at some of the responses when something tragic happens. Some are appalled, some are amused, some are downright cold bastards.
I have seen the generosity shown here elsewhere - on Parallax, THR, even on gunsnet, and been inspired by it. We have no monopoly on good people, we just have a great big pool of gun guys in which to swim, and the cream rises to the top.
My .02