The real issue though is that nickb stopped posting. That guy was pumping out more "quality content" than the next 10 submitters combined. I have no idea how t

The real issue though is that nickb stopped posting. That guy was pumping out more "quality content" than the next 10 submitters combined. I have no idea how to fix it, but that's your problem; even with a lot of noise, nickb's posts kept the front page clean and interesting. (It still is, just not to the same level as before) Perhaps some sort of submission allotment per karma? 1 post default, extra posts for every 1000 over karma? You could also factor in how the posts/person performs...i.e. if your last post doesn't earn to enough points, it counts for 2 submissions, etc. Conversely, you could make the first post use all your available post points, and then as it performs and gets voted up, you earn them back. That way you would post your better stuff first and leave the poorer stuff to the end, but you still get a chance to submit it.