Earlier quoted context omitted.
One question (since I do like shortcuts) -- what about if you have uses pay each other (through whatever means is available to them), and only act as the sort of negotiation point? Here's what I'm thinking: - user signs up - user registers x supported payment accounts (Paypal, Venmo, etc) - when a user wants to pay another user on their site, you send them to the appropriate payment provider with the details of the o…
Patreon does this automatically. I, as a patreon, do not want to be sent somewhere each month to confirm my payment.
With regards to your comment, you're right that it's inconvenient but that can be worked on (API integrations?), and even if it can't, the people who are willing to confirm monthly payments to things they support might not be 0.