Facebook is super relevant for our business. Not only do we advertise on there, but I also sit on Messenger and answer computer and phone repair questions from friends, and get tagged in "Help! My computer stopped working" types of posts. It drives good business to our repair shops.

Facebook has also replaced forums for our industry (cell phone/computer repair), so it's how we find out about the latest trends and innovations. Yesterday I used a document posted on a private FB group to fix 3 2011 15" MacBook Pros with failing GPUs (previously considered "unfixable.")

For the industry and business I'm in, there's no substitute.

That's interesting. I would have assumed that Reddit was a much better resource for at least the technical docs. Many subreddits include a crazy amount of very specific information about just about anything you can think of.

Totally agree in general; I've gone down the "Reddit rabbit hole" almost too many times to count.

Private groups on FB can be more discerning about their membership, which is also what makes them interesting.

Many of the cell phone repair groups I'm in require you to have a repair business, so the groups don't get flooded with what they call "plz bro" posts. (i.e. "How do I fix an iPhone screen?" beginner posts.)

It also forms a tighter community; we pretty much all know each other on there, so we refer business back and forth a lot, and use Messenger heavily to buy, sell, and just chat about really obscure or weird repairs that come in the door.

I use Facebook very occasionally, and when I do I use Firefox with containers enabled. Facebook and related sites get their own containers.