...destroying the link graph.

Every URL I create is going to be blocked from link based trust metrics like PageRank? Thats just dumb. Id rather use another wiki system that doesnt penalize my linking behavior.

I realize that your intention is to fight spam but you should pursue and algorithmic approach. Blacklisting the entire Internet is NOT the solution.

Its clear by now that Google uses other metrics for page ranking (almost certainly including HTTP traffic monitoring by now) so this isnt the end of the world.

Linking is the whole point of the Internet! Creating road blocks for EVERY LINK in the system is the antithesis of a free an open web!

I'm glad Kevin is saying nofollow is not the web (outside of the blogs and comments it was designed for) and in this world view you can only give Google Juice and it doesn't give back.  Such a view and action only favors those in a dominant network position.

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He also writes http://ross.typepad.com/">Ross Mayfield's Weblog which focuses on markets, technology and musings.