Im not very social not even on Facebook, i use it to keep track of things, i liked pages that provide good information about things i like some humour pages unknown facts etc...
It also keeps me up to things people i know are doing, i have trust issues so its a good way to know a little more about persons you encounter in the outside world.

I also have found things through facebook that caused me some pain before that also happens.

About what you asked i think its true, for example you post a pic of yours and no one cares you get like 1 or 2 Likes from your friends while other people that are more "normal" get about 100 likes in 10 minutes, that does not mean they are cuter ou better than you they just are more active on facebook and post alot of trash. I see people making good posts on facebook interesting posts that no one cares, and then someone looking for a bit of attention posts things like "I know how to treat a Woman" or "Good girls love Bad boys" and they get tons of Likes and Comments.

Thats how it works, you can't be someone you're not and suddenly become popular so you either ignore it and stay in the shadows or you can leave the social network.