And this article is the 21st century article equivalent of cigarettes.. Both will give you cancer.

First off, he uses his personal google results, in incognito mode you wouldn't get these results (and you don't get anything related to facebook at all with this search query). Second, the term "How to quit facebook" isn't the same as "How to quit smoking" since "How to quit facebook" could be asking how to delete an account (which has nothing to do with addiction.) Third, there is a bias towards technology when using google search, things dealing with technology and especially the web will ALWAYS be higher up than searches relating to physical things, you can't use frequency of web searches as any type of statistic when comparing between a web based search and a physical based search.

So basically, this article is just as cancerous as cigarettes. Take it with a (HUGE) grain of salt.