Beware lest you abuse the notion of evidence-filtering as a Fully General Counterargument to exclude all evidence you don't like: "That argument was filtered, therefore I can ignore it." If you're ticked off by a contrary argument, then you are familiar with the case, and care enough to take sides. You probably already know your own side's strongest arguments. You have no reason to infer, from a contrary argument, the existence of new favorable signs and portents which you have not yet seen. So you are left with the uncomfortable facts themselves; a blue stamp on box B is still evidence.

— EY, "What Evidence Filtered Evidence?"

Also, we should distinguish between experiential evidence that a person offers based on their own experience, and (what we might call) hermeneutic evidence that may depend on a particular selective evaluation of published records. The sort of "evidence" that conspiracy-theorists (Holocaust-deniers; 9/11-truthers, birthers, etc.) have to offer is usually of the latter kind. In the present case, we are dealing with people's reports of their own experiences; even if we do not agree with the sociopolitical conclusions they draw from their experiences, this is not reason for us to become denialists about their experiences themselves.