[propertymagnate]

I suspected the headline was sensationalist but on reading the article, I would say it isn't, and the headline is correct.

It has examples of the campaigns of national political parties of different nations (hence world leaders) using a loophole that facebook pages can do certain things facebook accounts can't to boost their engagement and/or avoid the scrutiny an account would get.

It also has a really good non-techy breakdown explaining how it works. I think it's HTML5? Having read it, I would say it's a really good piece of journalism.