*Shrug* I won't say wc3 players are stupid (HAve one in my class that is very nice) but my experiences with them online has benn well.. werid.
Funy incident: A couple of months ago 2 random people came into our clan channel and started talking major crap. I said something like "You play wc3 right?" (Childish I know=P) The answer was "Just because you cannot afford a better comp etc etc"
Then I noticed the wc3 icon beside their names, which made me lol. They stayed around for a long time though
then all the times in wc3 random games where you are greeted with "fucking motherfucker!" =P
Though random bm people of course exist in bw too.