If it hasn't registered yet, please note that any e-mail that asks for your personal information (the kind aiding in identity theft), whether or not decked out in authentic looking logo, is a scam. I get them all the time and NEVER respond at all. If they ever need something, they will ask you to access their own pages. Just don't ever give out SS numbers and the like.
FB is a great annoyance, and their technical help seems non-existent, but I have hooked up with long lost friends and have enjoyed posting and reading.
I have "conservative" and "liberal" friends who post political stuff. No one has been censored or removed. I've never seen so-called liberal media. I am a true conservative, which means among other things that I keep my nose out of other people's private lives, but you'd call me the opposite. Nonetheless, while you can access my FB page at your own risk, regardless of political affiliation, no one has yet interfered with my pages and access. I honestly do not think FB cares about anything, including customers (now law suits are another thing). It's those other guys who pressure the internet operators that you need to treat warily. 'enough paranoia for now. Lots of social media and search machines are annoying, but model planes seem to benefit from FB pages, and we have a NCCL club page too.
SK