Drop your new ideas into the Writing.Com Suggestion Box!
I'm not sure how I feel about r-post. While it's true a content rating applies to the posts within a forum, given the interactive element of forums I'm not just not sure about attaching ratings to posts. It's one of those things I don't want to do without thinking it through.
However, we've had f-entry for a while, which shows the entry and the book it's from... so doing that for forums IS something I can do without thinking much.
Thus, I've added f-post and fr-post; "From" with "Rating". This is just a one step to get the combination NW had suggested. Indeed, it should pass as successfully acknowledging the rating of the post as needed in context of scroll.
These are NOT in the WritingML documentation yet. That's a somewhat more cumbersome and thought intensive process so I relegate that part of this project to the todo list.