Not bitter at all, not sure where you got that impression from my post. If I have something that does not present me in my best light, why should I volunteer to show it in a hiring process? I am just being practical.

I do think all hiring processes have a component of arbitrariness, so I don’t think it is necessarily a bad sign that a company quickly dismiss candidates from poorly-maintained GitHub accounts. I would gladly not show my GitHub and try to get the job showing my skills in some other way.

A company doesn't necessarily begin and end with the person hiring.

Most people work where they find work, not where they want to work. It's less true in IT, but I'm still betting it's mostly true there

If they pay well – absolutely.