I would assume such a system is capable of facilitating fraud, so it's probably good to have some kind of financial hurdle you have to jump in order to use it? Not that having $25k or $50k is a guarantee that you aren't a fraudster, but I imagine there are a lot of would-be fraudsters who don't have that kind of cash on hand.

I do think this is a bit of a weak justification, though.

Funny enough this appears at face value to be the same idea behind proof of stake concensus protcals.... lololol

Wouldn't people who steal money have more money then people who dont?

The few scammers that make more then 50k out of it can be caught manually.