Looking at this thread gave me deja vu and reminded me of a similar drama a few years ago with another youtuber that was faceless before her face reveal known as wolfychu.
The context was different things including art degredation, not real animation, and false tags in video (the tags were the only real damming thing tho she might have stopped). But the biggest thing was about her voice specifically.
This was for her voice reveal.
This is her voice now.
It's noticeably higher in pitch and was in the middle between the voice reveal then and now a few years ago when people thought it was fake. The problem however, is there was/is little proof of that since she has nothing to hide. She doesn't play a character and she did get faildoxxed. I think the videos of it are down and many at the time were disproved as actually being Jordan's (wolfy's boyfriend) sister.
And this is what wolfy actually looks like.
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Here's why wolfy was succesful where Corpse failed. Wolfy had no real persona to hide behind other than clumsy or shy while Corpse made himself as the saddest emo e-boy ever. Also at least one voice somewhat fits. Edit because I forgot to mention another big difference between the two: Wolfychu never explains why she has this voice and seems to accept it (though she has mentioned people speculating it being helium or pitching which they did a video on recently
Corpse always had to explain that it was GERD that caused it and stomach acid. So it fits into what was said earlier with the SorrowTV graph that the more explanation, the more obvious it is.