[mjcl]

Not even corner cases. I worked for a fintech that launched a dda-ish product that had 16 digit account numbers, issued sequentially, with no check digits. At launch there didn't seem to be a CS process for dealing with pretty obvious "customer mistyped account number and sent their money to some else's account." problem.

[dboreham]

Feature parity with blockchains.

[mjcl]

Not even, in cases where the company couldn't recover funds from misdirected payments they ate the loss. Though obviously I think that's a good thing.

[solarwindy]

Uh, no, most crypto wallet addresses have either a checksum or some other means of typo detection / prevention.