Does that second Paladin prompt really need its 18+ tag?
Probably not.
But.
I've seen people mention getting into trouble with bosses walking past while their screen was showing Art, and while text doesn't have the same instant that's_a_penis.gif effect or whatever, it doesn't hurt me to be cautious and tag stuff that might cause problems for other people.
It's almost definitely hurting the amount of people actually clicking on it, tho.