[marstall]

still leaves the micro- and macro-expressions, small grooming cues (makeup, no makeup, eyebrows trimmed or not), hairline, head angle vs. camera, lighting etc. These are all things that humans very specifically deploy to define themselves and their grouping, and communicate with others. So I am guessing a whole universe of personal yes-no qualities, political and otherwise, are encoded there, quite intentionally.

[croniev]

I'm sure you're right. But it makes no difference, because when the facial recognition is applied, I think the likelyhood that people will have the same "grooming cues" as they do in their profile pictures is pretty high. If I have short hair in my profile pic, I probably have short hair in my everyday life, in the moment that my face is recorded and processed, as well. Yes, I choose how my face looks myself. But that does not mean anything, as objectively it is the same, whether I intended to or not.