fathom - 3:39 am on Apr 21, 2012 (gmt 0)
Look what Google has done. This is going to get ugly.
The more things change the more they stay the same.
What's better seeing spam in results outrank you permanently (the old way) or a temporary setback caused by the same culprit?
Black hat strategies have always been there. Changing which domain get their short-term benefits is neither here nor there.
Recently the stable length at which a black hat strategy provides monetary gains has been compromised to a point that makes it unfeasible for commercial return.
That community is in search of a new market.
Combating negative SEO is no different than combating any other unpleasant business issue.