Disapproval with an eloquence beyond what I am capable of relaying or even imagining.
Sadly, that doesn't stop a lot of people from showing off. If it happens with certain outfits in the mall, it can happen on a nude beach.
But this can be achieved with frocks, habits, or uniforms. I don't see what benefit nudity has in this context.
It's a layer of protection against small foreign objects going into your butt crack. I would think that this extra layer would have health benefits for women as well. In terms of modesty, the less you can get away with showing off, the better. So if a swimsuit is functional and not fancy, that to me wins the modesty competition.
I have a hard time believing this cannot be accomplished with clothes on. Besides, if you've got it and if you hide it, I would think less people will try to flatter you for having it.