I think you've shown Polymarket comments are crap. But I'd say that for every venue on the internet except, occasionally, HN.
While there is legitimate concern around manipulation given Polymarket's thin volumes [1], there is limited evidence that the broader value of prediction markets applies to them [2]. (I started taking it seriously after Nate Silver hitched up his wagon [3].)
I'm sceptical of political predictions. I have limited respect for crypto. But on the balance, once you account for manipulation risk, it has a good track record. More pointedly to OP's question, I don't see any controversy around its adjudication and ability to pay.
[1] https://insights.som.yale.edu/insights/dont-trust-the-politi...
[2] https://www.uc.edu/news/articles/2024/12/election-results-sh...
[3] https://www.axios.com/2024/07/16/nate-silver-polymarket