Not exactly related directly to article, but interesting thought...

After seeing the headlines of Google decimating companies when it finds they used evil black-hat SEO tactics, I wonder whether one could use evil black-hat SEO on a competitor, artificially increasing the sites rankings for a few months, and have the wrath of a Google ban-hammer upon your competitor o_O

Very evil. I wonder if there are companies doing this currently :P

Thoughts?

Sorry if this has been discussed here previously. If so, links please :D