I remember there was a similar platform to this one, it's called Futuur. I don't know if others still remember it especially those who promoted it before and those who had accounts there and engaged by making their predictions not just about politics but on any category like science, business, finance, and many others.
I think its gaining momentum because they merge gambling with strategy but they also expose how subjective decision-making can make or break trust.
Futuur is still a thing and it seems to be up and running, but for some reason they did not have the surge in popularity Polymarket had in this past election campaign in the United States. I assume since we are talking about two betting comps is which have market for politics events like those linked to Trump and his promises, Futuur and Polymarket are direct competitors.
Once I asked the staff of Futuur if they could share their monthly volume openly and they said (back about 9 months or so) their monthly volume was almost 30,000 dollars, which is impressive considering that is rather a niche betting website.
After all the volume created by Polymarket, Futuur also probably has seen benefits with the increase of interest of people in betting on politics, I would bet their volume doubled since the last time I asked them about it.