[mattmaroon]

I mostly played poker, where you can have an advantage over other players that is greater than the rake the casino takes. But I also found all sorts of random opportunities here and there where I had an edge. Where a casino comp system gives you more in rewards than the game takes from you for instance. (That’s both common and legal but they will cut you off because you are essentially taking the comps they want to go to the people they make more off of so it’s a lot harder to make a lot at than it used to be.)

Or when an online casino is not careful enough about how you earn the bonuses they give you. Things of that nature. There are people also who can do it at things like horse, racing or sports betting, but I never knew enough about either of those or wanted to learn.

My Predictit wagering has mostly been on the theory that exactly what this article says is true: people are betting who they like and the polling aggregators are better. I really just look for arbitrage opportunities or discrepancies between the market and 538 that are large enough to overcome the fees.

The fees are high enough to make it not happen a ton, but it does happen.