Why do some Players get mad at ANYTHING !

This is my first tekken and I’ve gotten so many messages for players lmao. When I used to play Victor, I didn’t get any messages but I just recently started playing Lars and when I win….i get “you’re not fun”…. When I lose I get “all you do is dress up, learn the game” (my Lars is in a Joker cosplay)…I bought the game to learn and have fun and that’s why I don’t even play on ranked to not stress myself and people still find a way to leave a negative comment lol…Does this happen to everyone or just Lars mains