Well that's interesting. Ngl it kind of makes me want to fund it now with a low denom of like 001 lol. I'm sure it's safe to use as a wallet. I find it hard to believe no one has ever funded one.
I'm pretty sure it is safe as well - I actually helped BG4 create the Bitcoin Stock Certificate vanitygen code for the 1SHARE addresses, using Node.js to search for addresses and print/use the ones found..
... Knowing a bit about the code used to create those (they were later than these actually, but probably still the same process afaik, I know the privkeys were
always destroyed in the vanitygen process part of the code (in memory and on disk)
.. I'd feel plenty safe loading one myself, but just never saw another user sell one that was loaded ... Maybe someone else does recall a loaded one, IDK... But yeah, they are awesome artworks/wallets either way.