Unironically grooming. You have to realize that people who like indies tend to do so because it lets them get really close to the vtuber, agency fags like us view chuubas like movie stars and idols, untouchable and unreachable, but many people got into this hobby to be parasocial and try to insert themselves into a chuuba's life as much as possible.
I'm not gonna claim it's a bad thing, but it is what it is, and I'm not gonna pretend that isn't the main draw.