Ah so you didn't learn how you can tell from the video.
I did. As the cool dude from the pop science channel said, what matters is engagement. That's why I'm comparing engagement. I'm not going to click on 3000 profiles (or 300 profiles, to get a meaningful sample) and check if they like random crap. I don't need to do that, because I don't care about the percentage as a number. I care about proportions.
Also, you may enjoy this:
http://www.jonloomer.com/2014/02/11/facebook-fraud-response/I did look at the page and it seems that most of your insights come from Lagos, Nigeria. Boy that sounds genuine.
Considering that we get comments from those people, yes, it does.
Also, importantly, when you say "most", you mean "less than 10%".