I'll be honest - This isn't a scam, But it is deceptive. You can't really even "pay to win", Because there's a semi-hidden invite-only tier controlled by the developers. The best you can do with the paid "pro" tier is break even on average - And for all the effort that takes, Might as well keep your money in your pocket. The exclusive "Master" tier gets an absurd amount of bonuses and can claim coin outside their area. It's more or less an oppressive monopoly game where the elites profit.