This article hit close to him and is the reason why I have disabled my facebook for 4 years and counting! I "quit" during my junior year in college (arguably the most important time to have one), but it was necessary for me to truly grow and not be shackled by the perception and identity that I had created for myself and that was imposed by others (by my own, very human tendency for comparison,)
Also, I thought it would be a fun social experiment, mind you - I am a very social person (relationships are like emotional vitamins) and I only planned on disabling my facebook temporarily so I could just mature and work on rebranding myself to the person I wanted to be, instead of constantly trying to keep up with the popularity contest.
End Result? Reverse-depression, in the sense that I found it extremely harder to maintain casual relationships, but not impossible. Missed out on lot of connections, events and opportunities that were organized through facebook. could not EFFin 'login with facebook' on websites or apps, had to manually enter my email address everywhere. Many relationships were inadvertently pruned by virtue of not being able to keep in touch effectively. I have a huge network of friends, family, and community, so one of the benefits of facebook is it lets you passively keep in touch, and takes the work out of maintaining connections. BUT Tremendous achievement. (Professionally, Physically, Academically , Financially, sex.) Now I have well curated, meaningful, close-knit group of friends and eliminated lot of noise in life - people and things I didn't care about or may have been toxic. I have never been so confident and now rarely phased out by anything, as I have seemed to have developed resiliency to any insecurities or perception issues that I had before. My years off facebook have given me incredible focus in my pursuits, I can compare it loosely to Oliver Queen being stranded on an island. I look back and can't even recognize the person I was before, a completely brand new identity. Overall it gave me the courage to realize my potential and just live free and be true to myself. The reason why I attribute all this to getting off Facebook is in part, it may not have happened without my heightened and matured mental health.
I still think it's important to have a facebook, within moderation and for the express purpose of keeping in touch. I was that guy constantly checking others people's walls which resulted in depressive symptoms (which are usually exacerbated by ones own insecurities to begin with), like the article stated, it's human tendency to compare yourself.
The best part of all this was when I interviewed at facebook, and the first engineer I met with mentioned "So you want to work at facebook, without having a facebook...?" =p
TL;DR: Got off facebook, metaphorically turned into the Arrow.