Earlier quoted context omitted.
...Wait, so you thought there was ever a point when "good for Facebook" == "good for society"? IMO "bad for Facebook" ~= "good for society" has always been true. It's not a "sad place to be as community", they are a corp and their bait-and-switch was expected ever since they got created, at least from the people who don't idolize corporations that is. It was extremely obvious they'll position themselves as helpful, p…
I'd say Facebook was on-the-whole good when it was limited to .edu users. It had a purpose, it solved it better than previous options, and (critically!) it had a ceiling on total addressable userbase. Once it metastisized into "extract maximum revenue from maximum number of people," I think its soul was lost to greed.
But eventually they burnt so much goodwill trying to justify their stock valuation that at least were I am, all those informal groups have moved away from Facebook. Some managed to substitute the infrastructure quite well, some suffer quite noticeably. But none of them would consider going back. And openness to newcomers, discoverability, that has all suffered quite considerably.