Is there a way that we could do bracketing time limits for posters?

ie noobs get 30 seconds in between, but with higher post counts lower the posting time between posts.

ie..
5,000 posts to 25 seconds
10,000 posts to 20 seconds
15,000 posts to 15 seconds

I know it's trivial, but hey, it is some "reward" for a higher post count.