If you go to Matt Cutts (An Engineer from Google) post at: http://www.mattcutts.com/blog/2006-search-blogs-awards/ You will notice that he has put up a link to SEOBlackHat.com and he has specially tag on rel="nofollow" to this outbound links. All the other links do not have this attribute thou.. It seems that he does not want to get his blog banned by linking to bad sites Conclusion: Never ever link to sites that illustrates bad SEO habits..
If you were a white hat seo and teaching others the various methods of SEO and linked to a couple of black hat sites I doubt very seriously it would hurt your rankings. Another issue I see is the site seoblackhat.com has a Google PageRank 5 This means that other sites link to this site and those site must have PR in order to pass it on. So therefore your theory is not very valid as the sites passing PR to the blackhat site have not been hurt... Kind of a vicious circle you see....if the sites were hurt and given 0 PR then all they could pass to the black hat site is a 0 PR
SEOBlackHat.com has a PR5 and is not banned by google, no harm then in linking to this site as long as the link is on a relevant page
That's exactly what it is. I use nofollow on sites I don't like or don't want to pass popularity to. But in the end linking to spammy sites does hurt...seoblackhat is like...hmm not liked by google but...nothing spammy in itself..it just discusses ideas google may not like..it's not porno or rx drug site or link farm.
Ya I think it was just his personal prefference to not pass page rank to a site he really didnt approve of but needed to link to ..
If I were Google I'd blacklist every domain that contain "seo" in the string.. I like and study SEO, but Google hates it ;-)
This site is not a Black Hat site. Its about it, but as I see this, and also Google there is nothing with the site that is done with BH.
I would gues that he made the link no follow purley becuase he didn't want to pass PR to that site. I do exactly the same thing, I only pass my PR to good sites. Google is all about helping people find information. I can't see why google would have any objections to that site as it provides good information about a subject. The key thing is that the site does not use any of those methods.