It would be nice if coins had a self-destructing kill switch in the event that said coin(s) was/were flagged as stolen.
That is one of the single best ideas I've seen.
If someone could figure it out to destroy the stolen coins > this would create a hole where new coins are needed so the volume stays the same > patch the blockchain with new coins to a new address where the victim would be given back their losses and volume would be back to original number
this would create an insurance type of system, and it would also gain trust with the public
Heh after the 'anonymity' fad wears off this might just be a thing. I could imagine a wallet offering 3rd party 2FA in return for a slightly higher transaction fee.