I remember Nate Silver speaking of the golden age of online poker, when amateurs were the dominant audience, and a decent (non-pro) strategy player could make a living. Word got out, and just like that, it was over.

This is something a number of people do on PredictIt, since that one does have a conservative lean. It takes a lot more than the individual limit to fully price correct, though.

I personally haven't maxed out on it (I think the limit is $800), but I've got a few hundred bet that Biden will be the Dem nominee / that Newsome won't be.

Not sure why we don't have more people picking up the free money, but given that I haven't picked up a much as I possibly can, I'm not one to criticize.

sure, and thanks for agreeing with my premise! but liberals are not really into stupid gambling games, so this "market" is inherently stocked with a limited supply of mindshare