It's unpopular but, crypto as it exists looks a lot like sports betting with "prop bets" "Futures bets" and "lines." They basically. found a way to sell sports betting to STEM people.
As a result of that financial crisis, real estate is somewhat heavily regulated in most countries, and exotic financial instruments based on real estate (which you’d need to make this work) are treated with suspicion. Probably not the most fertile ground for the aspiring scammer.