I find the obsession with pictures by some rather amusingly odd and slightly borderline weird. I suspect this picture "fetish" has something to do with the general decline of literacy in America over the last 50 years, probably due to the inordinate amount of television being consumed on a daily basis, such that many people's sense of reality is grounded more in seeing an image rather than being grounded in any other number of bases--hence, the "no picture = unreal" attitude.
Pictures are certainly nice to see and those who choose to post them have reasons so to do. However, those not posting pictures may also have quite valid reasons for not so doing. Given that I'm much more interested in the verbal content of what a person is posting, that would govern any of my supposed response way more than any picture, so picture, no picture, this site is and would still be quite interesting to read.
Also, in the interest of the supposed societal goal these days of being "inclusive," one should also consider the social milieu in which others may live and in which they were raised. Especially considering the obsession about aging which occupies several threads on this site, all of us will get older, and different age groups are socialized with different considerations. It is patently ridiculous to try to fit everyone into one common denominator! It won't work nor should it work. The absence of a picture is the absence of a picture. Period. Besides, if one wants to see someone else's picture that badly, one could always ask for a picture to be sent privately.
Obviously, using someone else's picture without permission of that other person is inappropriate at a bare minimum and legally actionable at the most, but all of the modern communication devices are subject to claims of "unreality" starting with the first telephones, photographs, motion pictures, radio, television, cell phones, smart phones, etc. If one wants "verified" "reality" -- whatever that is -- then one uses face-to-face communication. Unfortunately, that is occurring less and less frequently in modern life. The internet is what it is, and ambiguity is part and parcel of it in the virtual world.