@ Facebook scale, w/ more than a active billion users, this is disingenuous, @ best-- what are the raw numbers? If the average user posted 100 articles during election season, then, less than a billion article postings were hoaxes? That is definitely NOT comforting...

I suspect that the 99% number is a reflection of "unique number of fake content objects" rather than "number of times all fake content objects were shared or viewed".

Also, since we all have a tendency to build our intuitions through confirmation bias it's best to discount our anecdotal intuitions since they may not align with the actual numbers.