>>42193302Because it makes them happy.
Look at this way, average viewership of lower nijis is in the triple digits, the big ones 4 or 5 digits, just like Hololive.
Your average chat is usually a positive one, if you stick to your community, odds are you wont see that much anti shit, you dont have to come /here/ either.
So despite the fact that you're surrounded by litteraly hundreds if not thousands of people that support you, its that ONE negative comment, or even stupid shit said here that gets to you, of course that's going embolden your antis.
Literal caveman scribbling posted here and thats the shit that lives rent free in some vtubers heads