facebook fanatic
A Facebook fanatic is someone who thinks they're famous because they have 100 friends and 200 likes on a post about their dog's hair.
My dog got a haircut. I posted a picture. Now I have 200 likes. I'm a celebrity.
I liked my friend's post about his morning coffee. Now I feel important.
I liked the grocery store's post just because I needed bread. I'm a hero now.