what worked for him might not work for you. That's a fact as you can see many sites going back and forth.
And if it's a loophole, google closes it.
Lastly, everything here is on trust. He can easily tell you to cut your title to 6 words because it worked. Or no-index your category pages. Or...someone can lie and say he came back or was penalized.
Since content is not working for me, I am testing on making visitors go through a loop, not giving them the information right away as many of my competitors do. They are ranking, I'm not and I'll report if it works. Maybe time on site really matters for Google, even it's a bit annoying to the visitors. Google can't tell why they stayed an extra 30 seconds on my pages and they might see this as a positive thing...the users must be amazed how I included the other side's POV or whatever ;). If this means you escape a 70-80% Panda demotion, you adapt. Eventually you find a middle line between annoying them to much and surviving. In the process you make the web better, or whatever Panda's goal is. Whether it makes sense or not, means nothing, if Google put it there, it is so.
If you are a popular tech site with tens of thousands of followers and 1+million monthly visits you may want to try tweeting. Another one was un-pandalized after 4-5 days [google.com...] . Makes you go hmmmm...Panda didn't run again last night, did it?