What is the goal, then? When it comes to Google searches?
I see the goals as several.
1. ETHICAL. As a matter of ethics, I do not want any responsibility for promoting the availability of misinformation via Google, even if my contribution is microscopic.
2. SEMANTIC. By linking to sites, but nofollowing them, we provide a markup hint that
semantic web tools potentially
could use to distinguish a skeptic site from a woo-woo site. The two types of site are opposite, but use much the same terminology. Short of magical natural language technology that so far has not been forthcoming, we need other ways to distinguish if possible.
(Example of a possible tool, admittedly not Google search related: pull RSS feeds from skeptic web sites, and look for the nofollow links in the body of posts. Those are by definition woo-woo websites. You could then catalog who is debunking what, what is the most debunked article, etc etc.).
3. BUDGETARY. The amount of "Google Juice" a given web page can give out is finite. The more outbound links you have, the less help you are giving to each of them. As a webmaster I would rather budget that precious resource to sites I truly wish to endorse. So for instance, if you look on
Whats The Harm right now, you will find that
most of my outbound links are nofollow including links to seemingly neutral sites like CNN.com etc. This is so I can give the maximum boost possible to good skeptic sites to which I also link. (And frankly, CNN doesn't need any help from me).
There are probably others.