The main issues I have with the grades is that 1) they are specific to the anime fandom, and this trope is far from anime-only or even Japanese media-only and 2) they are exactly the same thing as unnamed types, which we are squishing with extreme prejudice elsewhere on the wiki.
The examples look clean right now because three moderators and an unknown number of others have all taken a turn at cleaning them. I should hope to hell they're thoroughly sanitary by now. What we really need is a full-time curator for this page, since it is (as Raso is wont to point out) a very popular trope.
We don't need to mention it's the number one fetish in Japan. It may be factually true, but it has nothing to do with the trope.
We do need to make the description less anime-centric. It may be popular in anime, but it is not exclusive to it and did not originate there.
We do need to move the information about the Trope Namer
down, and the actual trope part up.
I don't think we need to cut the symbolism out, because this is the way I see it used (and I don't watch anime). However, we can work on the way it's worded if it's creepy.
It's been brought up that the grades are part of the symbolism, but this information is nowhere on the page other than "Grade S", which is when this trope intersects with others. If this is true, then it needs mentioning.
I'm sure there's other stuff I wanted to say, too, but it's not coming to me right now.