:::::::::::But the evidence by which you determine that this source is "impaired" is precisely the issue in question.  You've assumed your conclusion (that "Beyonce" is only correct with a diacritic), discounting any sources that disagree with you as necessarily unreliable  precisely because they disagree with you.  That is the worst sort of echo-chambery, self-righteous original research that is the antithesis of neutral encyclopedia writing.  What you're saying is the linguistic equivalent of "I don't believe global warming is a threat, and any sources that say otherwise are unreliable, because we know global warming isn't a threat."