This seems like a very smart idea. like you said, finding good posts is difficult because there is just too much content to wade through. So having a tool available that eliminates a lot of the "noise," should make things a bit easier for curators. I think word count is a good start. Image counts and black lists are good also.
Great idea. Good luck in the project!
Thanks @leaky20! I am looking to add more variables to the mix as time goes on. The number of images would be a cool metric to display and would help some curator knew if there are too many or too few.