I've declined to hire someone because they didn't listen, didn't know all the things, didn't know any of the things, didn't know anything at all or couldn't articulate the things. Never once did ear hair raise to the level of impacting the hire/no hire decision. Mainly because it's hard as heck to find someone who listens, knows enough of the things, and can articulate the things. So when such a person is encountered it's best to ignore everything else and hire them. So I have some weird AF people working for me but they get stuff done.

And that's what I know about ear hair and hiring decisions.