I'm constantly thinking about this. Without reputation, no one sane will send you money upfront.

How do I know that npub is ross?

More generally, how do I now it's not a scam.

I have some ideas with bonds and cashu, but still don't know if it can be done without aribiters. And who's gonna trust them?

Seriously have been thinking about that for at least a year.

We need some sort of blind oracle for this.