ColourOfSpring - 8:12 pm on Jun 3, 2013 (gmt 0)
The algorithm does not like "THIS" so stop doing "THIS" and start delivering "THAT" and because the algorithm likes "THAT"... you recover from the algorithm hit.
The problem being, of course, is that we do not know what "THIS" is because Google do not even communite to us when we are hit by an algorithmic update. If we cannot know what "THIS" is, we cannot fix it.
And surely Google do not want us to learn whatever "THAT" is, since spammers would emulate whatever "THAT" is.
To sum up, Google do not want us to know either "THIS" or "THAT" when it comes to their algo!