It's a personality type / disorder (pick your poison). There's no hope for change. Programming seems to attract such people, because they are fixated on being right and proving that they are right. I know a few more examples. My common sense policy is - if the software these types produce works for me, I will be using it, but I will never allow myself to be dependent on it. That kind of person will gladly burn their own house to the ground, with everyone in it, if that's what's required to prove their truths or maintain some kind of intellectual purity.