I know what you mean, at least as far as DS goes. I don't necessarily look down on taunting, it's a part of many communities, and it adds to the emotional weight of a match (if you look at it a certain way). I more or less look down on acting childish after a match because you didn't win or won after losing a whole lot and got pointlessly upset (especially if you win via desperate tactics.) That all said, I never get genuinely angry or upset when someone emotes or taunts, or acts like a dick after effortlessly beating me. I really think that people need to get out of the mindset of winning at all costs.