After our unnatural link detection launch last week, a lot of people asked if they should disavow NO-FOLLOW links.
The short answer is that there is no exact answer on this.
There are 2 major, contradictory, opinions on this:
No. You shouldn’t disavow No-follow links, as Google says it doesn’t pass any ranking juice to them. [GOOGLE APPROVED]
Yes. You should disavow No-follow links as they might be created using unnatural methods and they could add up in the unnatural link mix.