This matches my experience. Open source projects tend to get the worst parts fixed. It's in-house applications, usually written in VB / Delphi / Java, that have

This matches my experience. Open source projects tend to get the worst parts fixed. It's in-house applications, usually written in VB / Delphi / Java, that have been supported and added to over the past 20 years where the true horrors lie. As you say, I doubt many businesses would be willing to put this kind of code out there.