Cool platform! Thinking about using it for a game project I'm working on – at least for temp V/O. I was noticing that the player for voice acting doesn't play reliably on the search page – you have to go to the profile first. Might be a quick fix.
My company has hired some people for TTS voice training on Upwork. About 90% of the voice actors resented the implications that someone else could make their voice say stuff that they disagree with. But some of them also found the idea of becoming digitally immortal very attractive.
The same way some people like to put up a marble statue of their heroic deeds, others like to record themselves for the internet. In my opinion, both types of people want to avoid being forgotten and surely if you become a famous TTS voice, you'll have a Wikipedia entry...