The instasweep ensures the paper wallet is dead. If the new owner of btc wants to resell/spend, go home & print a paperwallet to resell btc. rinse & repeat.
Discussion
that is if they don't want to have own mobile phone part of transaction, of course they could just sell on phone but that isn't the point here. needs to mimic cash like as best as possible for some.
what am I missing nostr:npub1xapjgsushef5wwn78vac6pxuaqlke9g5hqdfjlanky3uquh0nauqx0cnde