[chias]

I'd bet that a significant majority of prediction market revenue comes from people who bet big.

So I expect your solution would fix all of it, as a second order effect, in that running one would stop being a viable business model.

[andrewflnr]

That would be fine by me, but I don't think they need massive revenue to be viable. Certainly they would have to downsize from where they are now.

[jaccola]

I bet that most of their revenue doesn't come from people who want to bet big!

If only there were some kind of market where we could materialise our bets...