> I have a pet theory that when people interview they bring this buried frustration into the room with them and use the interviewing process to play the part of the people they feel humiliated them.

I think it's possible--but there was an experiment someone ran a few years ago with a guy applying to jobs in both software development and management (while qualified for both and resumes optimized for each). One of the key differences that was found is that software developers essentially started out at zero and every wrong answer / misstep essentially reduced their score. For the management interviews, it was tougher to answer something wrong, but each good answer earned points.

It naturally results in software developers feeling like they blew it, but managers just wondering if they wowed them more than the other candidates. To me that suggests it's something more inherent to software developer interviewing than a frustration bias. If I had to guess, it's just that aspects of software development are more measurable than in other roles, and there's more genuine fear of hiring someone who can't fizzbuzz.