>>381590178
Most people here and in VRC in general are introverts or spergs so they need something that will act as ice breaker. Avatar is the easy way to do that.
Only way to get away with something that's generally disliked or hated like meme avatar, male, furry or TDA is if you're so overly extroverted that you can barge into room full of strangers and make friends with them in under 10 minutes. There's very few anons like that so everybody else is just anime grill.