>>99727530Crack theory, but I think YouTube actually hates subscribers now - as in, if your audience is predominantly your subscribers, they stop serving your account to the algo. The old mid-COVID algo was tuned to serve you things you already proved your interest in, but the current algo instead tries to serve you similar-ish things you haven't tried before. So if Fauna was overwhelmingly watched by the holobox, the algo simply stopped showing her to anyone outside of it. And if you go through your own old sub feed, you might've noticed that many of the legacy YouTube accounts on there are incredibly algo dead compared to what they were even 1-2 years ago.
But Nimi? Nimi's some random literal who was born yesterday that surely has nothing in common with the holobox or Vtubers, so she's new, and fresh, and totally not that stinky Fauna person we've long decreed as algo-stagnant. But she's seeing so much success with all those audiences that surely have no idea who she is, numbers to the moon!