Well tbh the only reason pippa watches anime/vtubers is because she's a lesbian.And Kay Yu's "we can't endorse mods" disclaimer.
Maybe it isn't even /pcg/, maybe it literally is just capipis. "Pippa is the only vtuber I watch" is a really common refrain; from your position in the community, what proportion of them do you suspect are just blatant no-lurking tourists that hate everything but her, and how much of that property is transitive to here?