jo on Nostr: What's prevent bad actor to run away with the money and don't respect the deal/trade ...

What's prevent bad actor to run away with the money and don't respect the deal/trade ?

Especially on Robosats, the bond is ridiculous and nothing seems to prevent a bad actor to scam multiple times as it's anonymous

Am I missing something?

I don't know well the other one, is there a reputation mechanism or something that can reassure the counterparty can be trusted?