What? You couldn't guess what he was at least trying to get at? If you were really confused, you could have substituted each word and then disregarded the substitution that makes absolutely no sense.
Honestly I wasn't sure what point the commenter was making, and was looking for clarification. Perhaps they were being sarcastic by seriously meaning to say that FB is a treat for "democracies" - in the sense that for targeting and accessing voters to potentially manipulate is a piece of cake with FB's ad targeting. It would act as a way to point out otherwise if it was a typo or not as well.
