Since this site is far from being a source of income, this process amuses me. However, I believe that these are extremely hard times for business owners that their income is related to the amount traffic they get from Google. This situation raises an important discussion.
First, Do we really want to rely on Google that much? we have un delete able e-mail, the content of our hard drive is in Google desktop, and the government is trying to get Google's (our!) data and will get it eventually (and no one say anything about it but this a different topic). This is not a good combination for people who fear for their privacy and this is before we discussed Google's level of evilness. This situation raises another issue. On one hand it is possible that Google is becoming really evil (and I mean Redmond evil without the donations). They are building an alternative internet that will demand worship and obedience of the mighty algorithm. I doubt that this is the case.
Of course they will do anything (and I mean anything) to make the shareholders happy, but The slightly less frightening scenario is that Google reached the limit of its ability. It is possible that the ranking fluctuates because the algorithm is not stable and it is possible that there is no way to clean the ad sense junk sites. Either way, Google appear vulnerable then ever in the past few weeks.