Facebook fabulist
Someone who's on Facebook more than their mom and spends all day rating your pictures like they're the judge of a beauty contest, while posting their own terrible photos like they're famous.
'Your photo is a 2. I gave myself a 10. You’re a 2.'
'I took 100 pictures today. You took one. You’re a 1.'
'I post every day. You post once a month. You’re a 1.'