To add, that's not the same as "not paying out", it's settling in the opposite direction.
Can you influence outcomes on Polymarket by purchasing enough UMA tokens?
Why would people accept this? Especially if ownership is anonymous and could overlap with market actors?
People are very good at convincing themselves that because something has not happened, therefore it will not.
When UMA is eventually abused to make a lot of money, then perhaps things will change.
Because A) they're not paying attention, B) they're in denial and C) because they think they can profit in the short term before it collapses, or that the odds are in their favor to profit despite the risks.
I've found that dishonest bookies will commonly bet when they have insider information or some way to push the outcome in one direction.
That's why the mob both employs bookies and pays boxers to throw fights.