Things are changing for businesses who use Facebook for their marketing. It’s no longer a game where the benefits can be found in bulk. It’s actually turned 180 degrees to the point that you’re better off posting a single amazing piece of content on Facebook once or twice a week than a daily post or two that doesn’t really do anything for the brand or business.
The idea of the NoFollow attribute on links was to help prevent spam from appearing on user generated content sites, particularly Wikipedia. It was intended as a way to tell Google (and eventually all major search engines) that a link was not supposed to transfer any “link juice” to the recipient of the link. In essence, it was designed to stop SEO spammers from trying to insert their links where they didn’t belong for the sake of improved rankings.