And sometimes — quite a lot of the time, in fact — never fixing it is the way to go. It sucks, your users will keep complaining about it, and it'll nag you at the back of your mind forever. But if fixing things properly means somebody else ships first and you have no users and you get cancelled, that bug still wouldn't have been fixed.

But sometimes your product is so buggy nobody wants to use it. It's all trade-offs, just like… well, engineering.