Sometimes I worry about how many people actually know their friends on Facebook

Yes, yes "friends"
More like random people

My sister had like 3000 friends on Facebook and then just left

I don't get why u would want a bunch of people u barely know to see all your posts 0_o

How do I even get one

People who go to international schools can relate :D

I know every single one of my friends on facebook. I have under 100 but that is fine. I'm not allowing some random person to see my stuff on facebook... that is why it is also private.

He looks like Proffessor X.

I have reached the 5000 cap. Don't know where they came from.