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
Friday 13th – A Very Bad Day for Comment Spammers
Nice search engine friendly links are a great way to reward valuable members of the community of any blog, but they are certainly not a right, and still find myself deleting 50+ worthless comments every day.
Most disturbing of all though are the SEO consultants and agencies who I have caught commenting on behalf of their clients, or as themselves with a link through to a client’s site. Some of them are totally dumb about it.
I now have a new comments policy in force though most of it is just a clearer interpretation of what has been in place for the last 3+ years.