So I'm guessing that implications from meta-tags (rating, votes, tagcount etc.) is not possible. I can also see why it could be a problem; it's much easier to agree on a rating than on some tags (not saying that ratings don't cause shitstorms). However i do feel like there are cases where this would be practical, especially ratings, since there are certain things that should always be rated explicit. One example that I recently found is five pages of sex_toy -rating:e. As i understand it sex toys should always be rated explicit, even if they are background objects. Anus should also always be explicit as I understand it. I feel like this in some cases could reduce the number of incorectly-rated posts.
Edit: Actually the more I look at the posts and see all the misstags there is the better I get why this is not a thing.