I do not think this would work very well. I can't speak for others' habits, but my posting comes in bursts. Usually I post rather infrequently--just answering some comment or espousing my views on some moderately interesting subject. However, when I find something really interesting (like a Haskell article :)), I am likely to post in rapid succession.
However, I think that my posts on such subjects are the most beneficial for the site--they're the ones where I have a decent amount of knowledge and direct experience; I am much more likely to contribute something insightful on a CS article than on a sociology one, for example. Rate-limiting would make it harder for me to post about my strongest subjects without changing how I post about random articles.
Comments
I do not think this would work very well. I can't speak for others' habits, but my posting comes in bursts. Usually I post rather infrequently--just answering some comment or espousing my views on some moderately interesting subject. However, when I find something really interesting (like a Haskell article :)), I am likely to post in rapid succession.
However, I think that my posts on such subjects are the most beneficial for the site--they're the ones where I have a decent amount of knowledge and direct experience; I am much more likely to contribute something insightful on a CS article than on a sociology one, for example. Rate-limiting would make it harder for me to post about my strongest subjects without changing how I post about random articles.
Perhaps one that takes into account the categories you do post in and have a high karma for?
Then you have the nontrivial problem of trying to categorize all the posts.