I still see a lot people who say that nofollow links are worthless. But that is so not true.
The nofollow attribute was developed in 2005 by Google to help combat link spam in the comment section of blogs. It was designed so that webmasters could attach it to all unwanted links that are unrelated to their site, so that Google could improve the quality of their search engine results.
However, there are some proof that nofollow links are not completely worthless. It seems like they do pass a very small amount of link juice.
Of course dofollow links are better, but nofollow are not worthless!