"I trust my ears" should really be "I trust my brains".
Neither is adequate.
I trust my ability to pay attention.
I trust my ability to interpret.
I trust my ability to be patient and be rigorous in my methods.
Those are the things at stake.
It’s a lot smarter to trust your own ears than anyone else’s.
Well, not anyone. Some people are better at the required skills than I am. When I trust their ears -- and maybe suspend belief about my "certainties" my ears (and brain), I can stretch a bit and learn something.
The notion that everyone is their best source of expert knowledge is leading us into dangerous waters, let’s not extend it to audio.