I agree there's little risk of users deserting Facebook en masse, but what we may see is lawmakers coming down on FB like a ton of bricks. It will be popular, too: Heavily regulating social media and slapping them with massive fines will be winning issues with constituents on both sides of the aisle.
Pro tip (no pun intended): never use residential cable service. Always sign up for business-class service. You will get more-or-less infinitely better support, less telephone tag when things go wrong, faster maintenance attention, and fewer hassles in general, all without paying much more. Anecdotally, this also keeps you off the radar of anti-piracy crusaders, since users in business-grade IP blocks are more likely to have the resources to fight back.
I still use twitter, but I keep my distance, and it’s hardly a social platform.
I'm definitely not one of them. I use it for networking. Pretty much everyone in the board game industry is on Facebook at the moment (publishers, designers, developers, artists, media, etc), to get feedback from each other, coordinate events, and reach out to fans and potential customers.
However, I cheated somewhat and switched to twitter and continued to stay on Instagram (for sharing photos) and Whatsapp (talk to social circle).