Since when did kids these days start trash-talking close/back-and-forth games or even all games, not not just blowouts. You are not 10x better than someone in a close match. They are, in fact, a worthy opponent for you when that's the case. It makes no sense to trash talk unless it's a blowout, you only make yourself look stupid.
/shrug
*Edit for clarification: Not talking about normal trash talking, but the kind where you say you dominated someone when you didn't.