The entire idea is that the effect is subconscious. Sure, seeing one person post vacation pictures from Spain won't affect you then and there, but over time as everyone posts awesome pictures you will inevitably feel that something must be lacking in or wrong with your life.
I don't know. I see all of these people complaining about these effects, and it simply doesn't bother me in the same way (not to say it couldn't possibly have a subconscious effect).
But I feel as if it caused the same effect in me as it causes in others, I'd be talking about how I'm going to "take a break" from $socialnetwork for a month, and how much better I feel, and so on. But I don't. It's just a tool. I use it and enjoy it. If I didn't, I wouldn't.
