I see things like this on Facebook all the time

[Smith3]

Just so you know, these - the "like if you support XYZ" - are all scams.

All About Those Facebook 'Like' Scam Posts | Daylan Does

So back to the original issue: Why do these pages exist?

A: Because there is money to be made from it.

Businesses worldwide are trying to figure out how to best utilise platforms like Facebook, Twitter and Google Plus (haha, na I’m just kidding about Google Plus). They know that EdgeRank, likes, brand exposure and followers are important, even if they don’t know exactly why or what to do with it. But the problem is, building up these audiences and edge rank is a time consuming and often difficult task. And because of the time and effort required, this occurs :