Ahhh. 402 initiates payment, then crypto is used for that payment. Yeah, I see your point now. I guess BIP70 supercedes the HTTP402 in this case
402s been around for a long time, but "Reserved for future use": Already part of the HTTP protocol, and would just take BIP70 on top as a data format. BIP70 is new to me, will read up.
I don't dispute that. Personally I will use what works reliably and securely, whichever becomes commonplace is fine by me, so long as crypto is the underlying asset used for payments
