Validation is a Two-Way Street:
I say, "SCREW THAT!" I am tired of being silent in the face of those ridiculing me for doing what they should be doing. I don't check-in as some sort of validation because I am insecure. I check-in because I am proud of my healthy lifestyle choice. I check-in to demonstrate my hard work ethic. I check-in to let you know that if we were somehow magically teleported to a Mortal Combat arena, your Golden Corral chocolate fountain/cotton candy machine eating ass stands NO CHANCE.
You may be thinking... "Brett... just let it go... unfriend them if it bothers you so much." I am NOT a quitter. Quitters walk away. Fighters confront their nemesis and deliver 10 x's the hit point damage. We deliver R E A L I T Y so that douchebags think twice before criticizing those who are HOT while they are... ewww... well them!
From here on out, I will return my own VALIDATION to every Facebook Troll knocking my healthy lifestyle. Whenever they check-in at the next buffet, I will be there to go "Really?! Shouldn't you be eating carrot sticks?!". The next time they check-in to their favorite watering hole, I will comment "What a disgusting lush! No wonder you can't get up in the morning and workout! GROW UP." Validation will be served back.
Hmm... am I overreacting? I sometimes have that problem. ;)