In 2012 there were reports that 80% of traffic from Facebook Ads were automatic bots. So this is not the first time Facebook use tricks to get more money from clients.
From what I read [1] it's only one startup that claimed this, and I failed to see any confirmation from any other company. For me, no replication from companies that spend thousands every month on advertising = the startup messed up with its stat tools or wanted to create a buzz around its name.
Running campaigns on Facebook's advertising platform does seem to attract bots. It's not 80 % though and it's obviously not Facebook doing it. Why would they sabotage their own business?
