aristotle - 12:51 am on Apr 23, 2013 (gmt 0)
I also think, in the case of Penguin manual actions/penalties, that there is a punishment aspect to this, and that Google does want the process to require some sweat, along with some self-awareness and thorough analysis.
I'm not sure what you mean by "punishment". Could you be referring to punishment for excessive SEO activities?
It has occurred to me that Penguin is at least partly intended to be a retaliation against the SEO community, especially since many of the affected websites provided relevant high-quality content for their targeted search terms, and were demoted for SEO activity rather than any intrinsic deficiency of the site itself.
It has also occurred to me that Google is purposefully delaying the next Penguin update in order to prolong the suffering of the owners of affected sites until sufficient "punishment" (in their view) has been inflicted.