If you're going to post a picture of yourself to social media, some research done at Washington State University might help you stay on the good side of your friends. Drawing a distinction between "selfies" (pictures users take of themselves) and "posies" (photos taken of the poster by others), they found:
"[T]he students who posted more posies were viewed as being relatively higher in self‑esteem, more adventurous, less lonely, more outgoing, more dependable, more successful and having the potential for being a good friend while the reverse was true for students with a greater number of selfies on their feed."
People use social media to communicate all kinds of things to others, so it's no surprise that we're adapting to make value judgments about the ways that people share pictures of themselves -- whether those judgments are right or wrong.
But that's the way that manners work, isn't it? Even if you aren't setting out to be a showoff or to look like you're less dependable than others, if it starts to become less socially acceptable to share pure selfies, then maybe people will start to police themselves and the way they share how they look through the lens.
Though one conclusion really shouldn't surprise anyone at all:
"Personality ratings for selfies with a physical appearance theme, such as flexing in the mirror, were particularly negative"
Maybe it's a generational thing for me, or maybe it's just because I don't think my own selfies are all that interesting to share, but if you were to troll my Instagram feed, you'd find a lot of Iowa scenes, a fairly ordinary number of food pics, and a lot of things I find either interesting or funny -- but as far as I can tell, only one selfie. And it was a gag anyway.