synths with
Visible moles. Good way to take me out of the show, the moment I see the mole I can't see them as robots, no matter how stiff they behave
shareMoles/freckles could be added as a requested aesthetic by potential synth owners. There are people who like such features on a body. Notice how there are synths of all sizes, ages, skin-color, hair-color, etc, instead of all coming from the same mold. Buyers like to "customize" their synths.