Found Cards and Protocol

[bPratik]

Further into that post was this comment, which might answer your point.

@bPratik

The whole premise of a machine readable code is that it allow embedding more info that a person would easily care to type. So for instance the card number on a lost card technically becomes public knowledge. a QR with a similar unique identifier embedded means a finder is 2 clicks away from reporting it.

As for,

@anon44204028

Can’t see the point in faffing around with a QR code

The whole premise being missed is convenience. The QR augments the simple human readable url on the card with machine readable information. How is this not handy especially when OP mentioned this in their opening post:

@thom_horne

I called the number for lost/found cards (it was one of the big 5 banks, we get a lot of lost cards and we rarely have the time to call the bank.)