If you’re a Facebook page administrator, you probably know that there are lots of services providing Likes in exchange of other Likes, or worse, money.
One of these services is Like4Like, which is based on a point system. You earn points by liking other pages, photos etc, or you can buy points. After that, you can spend your points to get Likes. For example, you can set a page Like to 9 points, then, everyone who likes the page gets 9 points, and you lose them.