As others have noted, this is explained in the video (and made to seem super-brain-dead-obvious, at that). Specifically, clickfarmers are liking the ads whethe

As others have noted, this is explained in the video (and made to seem super-brain-dead-obvious, at that). Specifically, clickfarmers are liking the ads whether they have been targeted or not, in order to thwart automated detection. So you can't escape it. So far the only way around this that I've seen mentioned in this thread is to not advertise your facebook page at all, and instead advertise links to an external page that redirects back to your facebook page.