I'm sure you are right (I don't really care about that so I don't have any basis for comparison). All I wanted to say is, just because that's true for almost all stories, it doesn't have to be true for every single one of them.
If not, then you're using the codes incorrectly, which is a further argument for encouraging authors to be more selective in which tags they choose for their stories, rather than allowing a few to use as many as they can think of as a sort of 'prize' for creativity.
It doesn't matter if the descriptions of sex are non-graphic, it's still sex, and that's not a no-sex story.
It's perfectly fine to discuss sex in a non-sex story, you just can't describe the sexual acts. In an upcoming story, I make references to a brother and sister's incestuous relationship in a Finestories story, but I refrain from including any scenes showing what they actually do about it.
The relationship has a bearing on the plot, whereas the sexual activity doesn't (at least not directly, though it aids the SOL story).
Since SOL evolved to have no-sex stories, the codes have to evolve with it.
No, what is means is, if you don't use those singular sexual stereotype exchanges, then you simply don't use racial codes to label your story. No one really cares whether a particular character is black or white, especially not when selecting a story, unless they're trying to satisfy a particular kind. If a story addresses black issues, it's easy enough to identify that the conflict in the story description.