У меня, кстати, своя теория есть, что это такое легкое психическое расстройство нового типа, похожее на некоторые из этого списка:
""Crisis actor" proponents appear to have some degree of prosopagnosiaWikipedia's W.svg (the inability to recognise faces) and be unaware of it, or that people in general are much better than them at recognising faces. Evidence for "crisis actors" is frequently two people who don't actually have the same face, but who have similar hair, skin colour and clothes. This is surmise, though, and there have yet to be studies."
"There is considerable evidence that disorders such as the Capgras or Fregoli syndromes are associated with disorders of face perception and recognition. However, it has been suggested that all misidentification problems exist on a continuum of anomalies of familiarity, from déjà vu at one end to the formation of delusional beliefs at the other."