tedster - 9:50 pm on Dec 2, 2012 (gmt 0)
Here's an update on the success story I mentioned a few months ago. The site continues to achieve new record levels of search traffic and PubSubHubbub (PuSH) is still in place. As I see it this is a speed thing - Google consistently learns that this domain published new content first. The problem showed up 18 months ago, and PuSH was installed more than a year ago.
I'm sure it also helps that the site had a many year history of success before the problem developed. I'm sure it also helps that the site has a substantial group of respected writers who are creating the content. But those two factors alone were not enough to stop the scrapers from taking over rankings. And the fat ping solution of PuSH did reverse the damage within a few weeks, after half a year of struggle.