I'd rather not "argue the negative" here, for that is what you are suggesting: Your premise states a bias, in fact, that you cannot trust anyone else except what, for yourself, is the only valid view point. This view, totally unassailable by you as expressed, even though it is statistically impossible to prove let alone then forward as a serious argument, "arguing the negative" to infinity is therefore the only logical summary of what you offer. You offer a non-provable argument; and thus the matter is left to personal experience as the only valid view.Rob, I mean no offense when I say this, but people are really good at seeing what they want to see. I've seen people make exactly the same claims who, when observed from outside, had understanding of elements of reality that were counterfactual. Sometimes they got challenged on this (because they had people in their games that understood the reality of, say, swimming, better than they did) sometimes they didn't. Sometimes they accepted the challenge, sometimes they rejected it.
The fact someone assures me that they're neutral and did their best here does not really tell me a thing about how true that is (and it can absolutely be they believe its so and still have it not be so).