austtr - 9:05 pm on Dec 16, 2011 (gmt 0)
Not only has Panda effectively 'neutralized' these strategies - which I believe was a fundamental goal for Google
That is my thinking also. Those processes outlined in the OP all have one thing in common.... they all involve efforts to advance a website in the rankings using techniques that are artificial. Third parties aren't "voting" for the site, the webmaster is basically stuffing his/her own ballot box.
This may be an overly simplistic view but I have always felt that sooner or later Google ALWAYS rubs out any gains that arise from anything that can be created artificially.
All I know about Panda is what I read in here but if the game is now all about signals of on-page quality, then it would not come as a surprise to find that all of those SEO techniques are now a total waste of time. The reality is that they contribute little, if anything, to the page quality signals.