"I just got a bonus at work because I worked my ass off!"
"I got nothing, thanks for making me feel like a pile of shit!"
Why not be happy for your friends? If I see that my friends are on vacation, or enjoying their lives, I feel genuinely happy for them. I don't feel jealous. And they certainly aren't posting on Facebook to make their friends feel jealous.
The author should come to grips with the fact that the world doesn't revolve around him, and that if he doesn't post anything no one will notice or even care. This whole "keeping up with the Joneses" is a phenomenon he has created himself, and if he can't handle the fact that other people are actually enjoying successes in their lives, then he should definitely log off from Facebook.