in theory it sounds good, just kinda sceptic if it would work in practice... i think not all users & vendors are as "tech-savy" per say to follow through with everything, main reason that most people decided to use archetyp, simple ui/ux even the people who barely browsed through google could go on arche and order...
users will always gravitate to the path of least resistance. it's almost like someone needs to lure those users in, then slowly migrate the market to have all these safety measures 1 by 1. train users once they already have mass adoption.
I don't want to sound like a hater, but it is not technically possible. The automated encryption on the client side cannot occur unless the user does it manually, and this is because JavaScript is usually or should be blocked by the user. Generally, I think markets that have existed have had many features to protect both buyers and vendors. However, most people are lazy and don't care about it. If they really don't want to get caught, they should take the time to manually encrypt their data. Everything comes with a cost; either you take the time to handle all of the standard procedures manually, or you rely on the market.
> All-in-one VPS — backend, frontend, db = easy target