yeah i think its a little juvenile.  so they dont allow boarders, who cares?  plenty of other mountains, nearby too.  as a million other people have said, its a ploy to inject some rebelliousness back into a sport which is pretty mainstream now--every tool and their kid sister snowboards these days.
I don't dislike snowboarders, I dislike douchebags.  but a lot of snowboarders are douchebags because the sport attracts a lot of idiots.  skiing at snowshoe, a resort in west virginia where no one has heard of twins before, I experienced the worst examples of snowboarders.
me and some friends were repeatedly hitting this flat-down mailbox which was hella hard to land, and eating shit a lot.  these snowboarders were literally just sitting on ass, like 20 of em.  we lapped them about a million times.  and they were talking mad shit, laughing at us when we fell, etc.  i told em to get off their asses and try something, but no dice.
also my friend almost got in a fight with this 25 year old prick who got all pissed because he had to bail trying to 50/50 a battleship cause we were supposedly standing in the landing, even though we were well out of his way.  he was a major guido