[dspillett]

> To do simple input validation on data that has the potential to break 20% of the internet?

There will always be bugs in code, even simple code, and sometimes those things don't get caught before they cause significant trouble.

The failing here was not having a quick rollback option, or having it and not hitting the button soon enough (even if they thought the problem was probably something else, I think my paranoia about my own code quality is such that I would have been rolling back much sooner just in case I was wrong about the “something else”).