In regards to the claim of "YuYao's TOS isn't any more restrictive/is even LESS restrictive than Crypton's," we've been doing some research, because I'm all here for vsynth drama but I wanna make sure I'm getting the facts straight first. The thing is, it's just... not true? Crypton has several pages' worth of Do's and Don'ts for works involving their characters, most of which is standard (No excessive violence, no morally disgusting content, etc.), but those rules only extend to the characters. Their TOS is for character licenses only; the sources getting shared around to prove Crypton's equal strictness are in reference to the characters exclusively. YuYao's TOS extends to her software. It's not just that you can't depict her, as a character, doing anything of "questionable moral integrity," you can't make her sing about any of it either. Add to that the fact that you have to send any songs you plan to use her in commercially to Voicemith for direct approval, one by one... no, her restrictions are nothing compared to most synths.
I'm not saying those aren't valid TOS - YuYao AI's much more faithful to Yi Ming than the Cryptonloids are to their VPs, and it's valid to want to monitor content used with her voice for her comfort and peace of mind. But people still have a right to think it's too much, and ultimately not worth the cost of purchasing her or the effort of working within those guidelines.