If you travel, yes. I know many people who have stayed with distant relatives while traveling the world. The same thing happened before Facebook but at least now people have some insight into the person/family before they turn up on the doorstep and also have the ability to keep in touch afterwards.
My immediate family is spread across three continents and Facebook is an essential tool for keeping in contact with them. We still talk on the phone/video chat, exchange emails/letters/postcards, and visit in person but it's difficult to beat the convenience and frequency of Facebook.
We've also seen how much of it is truly fake, curated by foreign companies and political groups to push agendas.
In some sense those relationships were fake. How can you call someone a friend if you aren't willing to have a discussion, even argument, with them and respect them afterwards?
Personally I don't discuss politics or religion with most of my family. I know that my views are in strong opposition to theirs. Things may be more harmonious this way, but it does mean that no one challenges anyone's ideas.
Like it or not, it provides value to some. Which is, coincidentally, about the nicest thing I've ever said about them. Please don't make me defend them again, I feel dirty.
I don't think that ntsplnkv2 disputed that. He points out that benefits should not be considered in isolation, and instead argues for a cost-benefit analysis.
We can probably all agree that they are sinister bastards who don't have your interests in mind. That's not really up for debate.
Alas, they do create value. Seriously, stop making me defend Facebook! LOL