My honest opinion... to each his own.
Some will like it, some won't.
Some display double-standards stating that they dont respond to people without face-pics on their profile yet are reluctant to have their own face-pics displayed.
Some are comfortable with having their faces displayed in their profiles.
Some flash and some don't.
Personally i think the onus should be on running with your own preferences and skip the ones that don't meet them.
In the end, this is a massive mix of all sorts having many things in common and others not.
The big thing for me is when someone enters this site without really understanding the concepts of all these interests and preferences, then cross lines and destroy relationships that should not have been necessary.
A lot of people, men unfortunately the highest percentile, are truly only here assuming its a free-for-all fest... which in truth it isn't.
Couples indulge in this to enhance certain aspects and interests in their relationship but tgen a guy purposefully pulls in with the intention of a piss-up contest, causes crap and then revels in the consequences thereof as if he is some self-proclaimed sex guru.
It is cruel and inconsiderate and grossly disrespectful of relationships.
Singles also suffer in this as there are tons of fake people who really do no good to the mattr.
But... those are risks in the world of sex that exist and hopefully helps people be more vigilant about their selections.
So dick-pics to me in my opinion are a small-time matter in comparison.
To each his own... but respect the lifestyle and live true to its boundaries.