Decentralization does not add risks. It just unbundles consumer protection from the marketplace itself. If you want a customer advocate to mediate your purchase

Decentralization does not add risks. It just unbundles consumer protection from the marketplace itself. If you want a customer advocate to mediate your purchases, you can hire anyone to do it. Sellers will increasingly depend on good relationships with consumer advocates for customer acquisition. Advocates will blacklist sellers that don't meet their criteria or have screwed their customers over in some way.