Aside from all the usual stuff like wanting attention, self-promotion, validation and all that, is there some specific illness or reason why some people post photos of their own face, again and again?

I first noticed this with a guy I used to know.. Posted a close-up photo of his face. OK... Next day, a photo of his face, while walking down the street, which you could hardly see as it was mostly just a pic of his face.

Then another close up of his face. And another, and another... literally for a period of some weeks, before I blocked his boring ass, this guy posted nothing except photos of his face, usually with a single paragraph about some vague bullshit, the usual "Live, love, laugh" type crap.

I've since noticed 2 other people, one male and one female, do the same, so what the fuck is this?

I presume some kind of mental illness, but that's just a description, not an answer really.

Note that none of the 2 people I observe doing this are overly good-looking, indeed that first guy was damn ugly.

Have any of you seen the same? Ever called anyone out on it? Ever noticed what triggered it, or got it to stop?

Does it have a name, is this some fad or something?

Yeah, narcissism, but again that's just a word or description; I'm curious about the root or cause of this? None of these people, I think, consider themselves super good-looking. They don't live overly interesting lives, so what's with this "Here's my face. Again." shit?