the need to judge publicly is a subset of the need to publicize everything, a world where everyone is exhibitionist and selfies replace experiences. The people who do the former are primarily engaged in the latter.

This will only get worse, we are one step away from people posting selfies of their foreplay before sex for public validation.

It is already happening in tourism that people go to the beach for the selfies rather than swimming (seen that with my own eyes). Narcissism is slowly eating sexuality as well.