steveb - 8:26 am on Aug 2, 2009 (gmt 0)

-950 gets discussed less because 1) Google is better at more appropriately inflicting it, 2) in competitive areas many pages simply aren't ranked at all because there are so many with 950 penalties, and 3) it is pointless after awhile to belabor it if you are hit with it. It's still right there though, and completely different than other penalties. (Also it is now more likely -1000, as the very last results, regardless of the number, are usually penalized.)