And we do know that when one is not logged in After Nine is not visible to viewing.
Confused me a few times too back when they started that forum.
I think when things are very abstract, it is very modest except in the thinking:
"That there woman's nekkid as a jaybird!"
""I'm looking at a nude? You're kidding. . ."
"How can ya tell?"
"Step back a few feet. Now tilt your head to the left."
"Uhhhh. . .'fraid not."
"Here, have a glass of wine. . .Now look."
etc. . .
But I get the spirit of the question. And I agree. Even the implication of nudity could present awkwardness for some especially when showing the art on the site to a kid. All arguable based on where one is coming from. But this is in fact a commercial venue. And most of us have no axes to grind.
The solution ArtRage came up with After Nine seems very fair, IMHO.
"Not a bit is wasted and the best is yet to come. . ." -- remembered from a dream