I think i've misinterpreted what has been happening.
I thought that when the keyword dropped and the page that is being displayed in the results changed, it was because Google didn't know which page to rank. But i've realized that actually, Google is refusing to rank the homepage(the page that was blasted), which is why other pages are being displayed instead.
I think this makes more sense. It is just a waiting game now to see if it comes back.
I've been reading through your thread; very interesting. As I was reading through I discovered your theory that when Google decides to rank a subpage instead of the homepage, it means your rankings have been damanged. This was concerning and worrying to me because I have pages where I've got both the homepage
and a subpage ranking for a particular keyword, and worried if that was bad and I was just lucky.
However, this makes more sense, and a good example of the sorts of penalties your receive. Your ranking dropped because your subpages don't have the same power as your homepage, so it doesn't get the same ranking.
Wow, if this is the deal, then,
a new REVOLUTIONARY service should be launch.
and call it.
Website Killing.
This is something I am very interested in. However, what I want to test is "website killing" for
real, authority websites. So, say, blasting a
local company website with backlinks. Now, obviously I think you'd fail at losing them rankings for keywords related to their business name. However, what about blasting them for other keywords. It is one thing to kill a niche website. It is another to kill a local website, especially one that has
Google Place Reviews. If I can ever get my act together I have every intention of starting a case study on this.
For now though, it is probably easier to outrank a competitor than to kill them. This has taken a long time and it is still very uncertain what the future will be. For people that try to "kill" websites that have things such as bad reviews, your best bet is to probably create 10 websites with positive reviews and just rank the front page yourself, those keywords will be untargeted so easy pickings.