So, I can go and dig up a bunch of cub porn and spam e621 with it and then make the number 6%? Does that mean suddenly cub porn is suddenly more popular? Nope.
Now if you have the number of views instead of submissions that would work to prove some correlation of popularity. The number of times someone put something in somewhere doesn't tell anything. Otherwise, text slide shows with crummy free to use pop are things that a significant portion of Youtubers like to watch (hint, they don't).
So, I can go and dig up a bunch of cub porn and spam e621 with it and then make the number 6%? Does that mean suddenly cub porn is suddenly more popular? Nope.
Now if you have the number of views instead of submissions that would work to prove some correlation of popularity. The number of times someone put something in somewhere doesn't tell anything. Otherwise, text slide shows with crummy free to use pop are things that a significant portion of Youtubers like to watch (hint, they don't).