Speak for yourself. Facebook doesn't make me feel depressed. I meet my friends there. (I don't know how Facebook will ever monetize enough to satisfy its investors, but using it at the current per-user price is satisfying to me as a channel for grouping together people whose only commonality is that they are all my friends.) I have several friends who have figured out ways to share tough problems on Facebook and to get a lot of help from our mutual Facebook friend networks. I've been in various online networks since 1992, and Facebook is just like any other online network in that some of its characteristics derive from how you use it. I gain support and encouragement and information through Facebook, perhaps because I attempt to share support and encouragement and information through Facebook.
You just read the title and didn't read the article didn't you? The article is fully written in the first person and he only speaks for himself. The post subject is misleading and should be corrected.
Did you read beyond the first couple of paragraphs?
He starts out all "I this, I that", but soon moves on to "our mental health", "your friends", "you now have to keep up with everyone you've ever met", etc., and for grand generalization, "it's just that perhaps we, as a species, aren't yet used to dealing with a constant flood of our friends' successes".