I guess because literally no one cares.
Sorry, but just... no.
This is the same fucking excuse loser man-children use for their failures and justification for being a consumer. You get that happy for things that matter like having a child or getting that job or degree, which even normal people don't do any spergout/screaming because they know how to control their emotions.
Just because "they are not hurting anyone/ let them enjoy themselves" doesn't mean that they should not be made fun of for doing embarrassing and childish stuff. Let me remind you what forum are you in.
Bro, it's a fucking game for children. Who cares if some brain dead bear or some anime avatar get in the game. Those are not things you should even be prioritizing in your life.
"2000 hours played that's about as much playtime as you need to scratch the surface of any pro fighting game scene" That's because they been playing for years and stick to a single franchise of games, Sure, unless you're a mega autist that spends all that time on a single game.
Or you could be a parasite without obligations like Sonicfox or Leffen. Whom have never had any sort of responsibilities in their life so they only play videogames 24/7.