I haven't signed up for Facebook, and I don't plan on doing so at any time in the future. The site originated in a misogynistic, invasive college website, it compiles all sorts of information about its users including facial recognition data... and I really don't need to know that some guy I worked with twenty years ago is now a deplorable racist or woman-hater. No Facebook for me, thank you.
As if things couldn't get any worse, Facebook accepted a one-hundred thousand dollar ad buy from Russian sources seeking to affect the presidential election. Even worse, many of the fake Russian Facebook accounts were set up to promulgate divisive causes such as Texan and Californian secessionist movements; anti-immigrant, Muslim, and LGBT stances; and right-wing conspiracy theories.
I've long maintained that Facebook is a cesspool, but this sort of unopposed propaganda war takes the cake- Facebook compiles all sorts of data on its legitimate users, it's long past the time that they take steps to keep tabs on hostile foreign actors, who shouldn't be difficult to suss out.