So on BMF.io, you can earn money from referrals, but it's not like a straight-up "you get $1 every time someone signs up" kind of deal. It's more like , you get points (called BMF points), and those points can be turned into real money. From what people say, 1,000 BMF points equals about $1. So if you refer someone and they're active, you might get that. But it's not instant cash , your friend probably has to post or do something first.