I still think that is more about activity vs quality. Activity ratios are easily skewed with lots of posts regardless of quality. You always get at least one point for a post.
What I propose is 100% quality driven (decided by the users). How many posts/comments in relation to how many upvotes recieved from the community defines the average quality of posts made by a user.
Memes rule on avg points per post. This skews the data because not all post categories are equally appreciated. A good avg meme might net 30pts, an important avg breaking news article maybe 10.
Lurker already answered for me.
You can't always define a quality post based on upvotes alone.
Yeah I should have just called it "Score Ratio" or anything else really. It seems to be the word "Quality" that people don't like. Lurker isn't wrong, but I'm assuming the threads he considers "important breaking news" aren't that important to other users or else they would get more upvotes. Unless we are to believe the majority of users do/don't upvote based on how they feel about a post and they upvote colorful pictures with big words out of programmed instinct. Not a big deal, I just like stats that's why I asked.
BTW when you said:
isn't the date joined and level ratio better than that
I had no clue what you were talking about. Just saw it a couple minutes ago. I like it.
(average of 2 posts & 5 comments per day since joining)