Trash talk is just competitive nature, it's found in almost every single source of competition and there isn't anything wrong with it, even "personal attacks." Trash talk comes in many forms, but you can't pick and choose what offends you or else that defeats the purpose, if you're gonna get mad about personal trash talk fully knowingly it's just trash talk, than you should be offended by any form of trash talk and you're prolly a pussy.
I've played rugby my whole life, even at a very high competitive and physical level and I have had he nastiest shit said to me by opposing players (even my own teammates sometimes) on a daily basis, sometimes even leading too getting smacked in the mouth or me doing the same the them, but the MOMENT you step off the field and competition is done, that dude walks up to me and says "nice fucking punch, here have a pint on me" no bitching and whining about how much of a cunt I was, that's all left on the field.
And that's how trash talk should be.