You can’t rely on people’s ears. Witnesses are known for bad contributors to truth.
1. Max bto whined
2. Max refurbished whines (now inside under table mount)
I did a recording from 1 foot away from the front of my Studio and it picked up the air coming from the back of the Studio. I can't hear any noise from one foot from the front of the Studio. So I moved the microphone two feet away and the sound doesn't come through the microphone in my recording sessions.
I typically amplify the sound to 400% for finished videos so I think that it would be noticeable there. It is always possible that it happens down the road but it's also possible that Apple has fixed the problem or that it's a particular component vendor. I bought mine at the store so that I could do an easy return if it had the problem on initial boot.
I think that it would be rather awful for those buying BTO, waiting for it to arrive, getting the problem, returning it and then having to order another. I have been seeing fewer posts about it in the long thread lately so maybe things are getting better. If I were paranoid, then I guess I'd order two of them and then return one if they are both good or if only one is good. It increases the odds of getting a solution without the problem.