An entry fee that is reimbursed if the bug turns out to matter would stop this, real quick. Then again, I once submitted a bug report to my bank, because the login method could be switched from password+pin to pin only, when not logged in, and they closed it as "works as intended", because they had decided that an optional password was more convenient than a required password. (And that's not even getting into the di…
Sadly, yeah. And will do anything only if they believe they can actually be caught.
An EU-wide bank I used to be customer of until recently, supported login with Qualified Electronic Signatures, but only if your dongle supports... SHA-1. Mine didn't. It's been deprecated at least a decade ago.
A government-certified identity provider made software that supposedly allowed you to have multiple such electronic signatures plugged in, presenting them in a list, but if one of them happened to be a YubiKey... crash. YubiKey conforms to the same standard as the PIV modules they sold, but the developers made some assumptions beyond the standard. I just wanted their software not to crash while my YubiKey is plugged in. I reported it, and they replied that it's not their problem.