There is actually such a thing of some women wearing them because they're streamlined, more comfortable and practical, and grateful that they're so easily found now than when hunted out as a sensible option some 25 years ago, when only "naughty" shops carried them. A lot more comfy -- full-butt undies slide and sop and sag, hang up, and whatnot. I know this comes as a shock to many, but as long as you're continent (!!), thongs do everything you need undies to do, at a fraction of the mass -- underwear serves a purpose.
Some women wear them to flaunt their what-evers, or to feel "sexy," whatever. Others wear them because they're easier and more efficient.
This is a great thread! {^)
Happy you enjoyed the thread- not my normal fare- but thought it might be fun.