I find it interesting when others trust themselves and their judgement so implicitly, I certainly don't. A lot of that comes from being 1w2. I have to cross check it externally to see if it checks out. If I am overruled I let it go, even if I have to do it kicking and screaming. If there are potential consequences to my actions, I almost never rely on myself alone.
I definitely do the same thing as well with amazon and yelp. I am really picky with it too. I've had friends get angry at me before because I refused resturants due to what I felt was too bad of a review. They thought it was worth overlooking. It can be paralyzing though. There's been a lot of products I haven't bought because one or two valid negative reviews scared me off.
I don't trust anecdotes most of the time though. Partly because of the experience with my mother, that's pretty much all she does, and she is not capable of using critical thinking. When you have to force someone to accept that sea salt does not contain less sodium, you know there's a problem. I really really want her to stop wasting money at her "doctor" who isn't even a real medical doctor, but there's no reasoning with her.