I would guess that the defensive variety would not help, though it might cut off some negative feedback. I won't do it, because I find it unseemly regardless, and because I do not want to cut off negative feedback. I explicitly say so in my post note. I know readers aren't obligated to be reviewers, but if any have anything that hit them wrong in the story, or in the execution, and are willing to mention it, I want to know about it.Including a defensive proslug or postslug on Literotica stories to improve ratings/get more votes or comments
I also don't add these notes with the intention of improving the story's rating. If it is going to be rated high, I want that to happen organically, for the same reason. It's the quantity of feedback I'm after, and hopefully some quality comes with it.
If I find that these notes are inflating the average rating, I might need to find a way to counter that effect. Though that effect will be hard to tease out from the effect of improved writing on my part.