@NWF_Renim said:
I get that this tag exists because of the thigh_boots tag implicating thighhighs, but I honestly think this tag is the wrong approach to resolving the issue. It'd probably be better to simply make a tag that covers specifically thighhigh socks/stockings. That would then make the thighhighs_under_boots a simple 2 tag search, and thus wouldn't be needed to be kept. The new tag specifically for thighhigh socks/stockings would itself likely be useful in other combination searches.
This new tag would of course implicate thighhighs.
The concept is interesting, I like the idea of having a tag specifically for thigh-length socks. They're definitely an evergreen of otaku culture and I always thought the thighhigh tag was specifically for this.
But what you've proposed lacks any intuitive understanding. What I propose instead would be to create a "hosiery" tag to function as thighhighs does today, to cover pantyhose, thighhigh socks, and thigh boots, and to still create a tag for thighhigh socks.
This would achieve your goals, doesn't cause confusion, and creates an actual intuitive tag for thighhigh socks, which most have assumed were just thighhighs.