As the results of the small survey of yours show, there aren't a lot of players "at school". I have thought of that and came to the conclusion that threats like these get visited mostly by older people, whereas the younger players stick with playing the game who aren't really interested in threads like this. This is my personal observance and it might differ from the theme and title of the threat because most younger players don't want to show how young they really are. Mostly because of judgmental reasons.
Still, I am one of those "younger" players, currently 17 and in my last year of college.
My personal experience and thoughts are that the majority of those BMing are younger and a little immature. But emotions "happen" to everyone and though younger players thrive to let them take over when playing, older players still can't shut them out and there are some "adults" that haven't really grown mature enough to ignore BMs.
Sorry to hear about your Christmess (pun intended) though. Hope shit's better now ^^
This is because yonger people are not very common on such forums.