2002 Disqus NoFollow Social Networking 
ProBlogger
NOVEMBER 19, 2013
It’s doubtful that the comments have any real benefit to the commenter as most blogs have nofollow links in comments which kill any search ranking benefits and nobody in their right mind will click their links as they’re so obviously spammy. In fact this advice is Day 20 in our 31 Days to Build a Better Blog workbook.
Techipedia: Tamar Weinberg
DECEMBER 10, 2008
There’s no SEO value to these comments (they’re nofollowed by default), and all this approach does is makes you lose credibility in the eyes of the blogger. This isn’t the way to network ! I write about social media , people, not about beer bongs. Isn’t your name actually Alan? di “Quid Tum?
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