I also keep a backup of every private key I create to try to protect someone from themselves. Better to trust me than some random internet site or app.
i now wish i had kept the private keys of btc i gave away back in the day on paper wallets and said something like "if its not swept somewhere in 5 years i will take it back" as the few addys that i tracked havent moved them, some for like a decade. a tidy sum possibly wasted, possibly not.
hey we tried to spread the word. now it spreads itself.