"Creepiest shit ever" is a pretty accurate description of Upwork. If Upwork's attitudes and policies were described to me in the 90s, I would have said it was lame, unrealistic science fiction with an over-the-top villain.
If anyone wants to do freelance work, I'd recommend marketing yourself directly to local businesses, print some business cards, schmooze. It's about as much work and stress as using Upwork, and you don't have a misanthropic middleman taking their cut.