Well, just to distinguish how *I* happen to use the word, I don’t use FB nor do I consider FB “friends” to be real world “friends”. If you do and find it useful or valuable, I have zero problem with that. I actually wish I *did* use it and *did* find it useful. I happen to find it an astounding security risk I am unwilling to take. I was a member for about 45 minutes a few years ago.
I would wager good money, though, that nobody on FR, not a single one, has NOT had the experience of someone they *thought* was a friend or acquaintance (talking real-world) abruptly drop all contact after one or more pro-Trump or pro-Conservative thoughts were expressed.