I feel angry sometimes (well, all the time, but thats another story), about people who rage quit and those that refuse to listen then rage quit.
e.g. A Regulus stands toe to toe with an UB and EB, they die. Fair enough. I say, dont go two against one, wait for help, or come help us, or stack health if they are a rook with less health than my fairy build Reg. Do they listen? Nooooo. Fair enough, they have no obligation to listen to me - however, when they then QUIT after feeding the opposition several easy kills, I do get a bit miffed.
My experience is about 1 in 3 games are awsome, the other 2 in 3 games are messed up by quiters, rude players or people that dont want to play as part of a team. Not a great ratio, but it could be a lot worse. Add to that there are lots and lots of really great, friendly, polite players out there that continue to play.
I do however say, "omg, rage quit" when someone does it. Makes me feel better, a little.