Dave Naylor seems to think it is a good idea to nofollow blog comments.
In many ways he is right:-
- You get increased automated comment spam
- You get increased spam from outsourced commenting
- You get increased spam from people using commenting efficiency tools (Comment Kahuna, Comment Hut etc)
- You get increased spam from people using dofollow search engines
- You get increased spam from people using lists of dofollow blogs
- You get Internet Marketing Gurus encouraging their interns to comment on their behalf
It takes additional time to manage comments on your blog even when you set up Spam Karma effectively, but that is something you could outsource to compensate, or have managed by a more junior member of staff.
You also leak a little bit of extra juice, how much depends on your site structure, and how many comments you get. Some people prefer to have huge blogrolls of the people who buy them drinks at seminars.
What Do You Gain?
I think the biggest gain is in community
How a Blogroll Can Still Kill Your PageRank
Navigational elements on a blog or any website are an important feature, but you should be careful not to take things to extremes which can hurt the progress of your site, both from a SEO perspective and for website conversion.
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