Question for any nostr devs out there: why couldn't we turn this whole thing into a global non-kyc exchange?

I post a note saying I want to buy $X amount of #bitcoin. Someone wants to sell to me. We negotiate on the payment method (strike, cash app, etc.) and pay through a HODL invoice. Basically RoboSats

but would be less anonymous. Still non-kyc.

If this is not possible due to technical reasons please don't blast me. I am a non-dev just trying to get some non-kyc bitcoin. #asknostr