At first glance, the nrews about Digg adding no follow to sites that have no trust seems like a straightforward great idea.  In fact, it is.  It should deter a lot of spammers from posting story after story.  But it also creates some side effects.

If certain users on the site can convince the Digg algorthim that a certain site should be trusted, then that gives the user and site a HUGE amount of power. That user can then get paid to make a site trusted for ALL future posts or make individual posts trusted.  (Not sure which way it works).  The buyer of the links can even check for himself to see if the no-follow tag is present and pay accordingly.  

Digg has essentially created a new revenue stream of abuse for "trusted" spammers.

Another point of view to look at is how trusted domains from Digg.com just got a big boast in link juice.  Digg.com just went from 50,000 to 100,000 valid outgoing unique domains, to around 5,000 or 10,000. Perhaps even lower.  Those trusted sites should see a boast in SERPs in a few months from now. 

What do you think?  Feel free to chime in.

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