This is kind of convenient; it gives me one more excuse not to use facebook. A few days ago I got the usual notification email that somebody had sent me a message on FB. Clicking is a low barrier so I clicked, curiously. Then I instead got the "No, now you have to install Messenger app" screen. That was enough of a barrier that I said "oh forget it, who cares, anybody who knows me would know better than to send me an…
Why not use Messenger without Facebook?
My reason not to use Facebook was because it trivializes friendships. With Facebook, I wouldn't have to go out of my way to be "friends" with someone, so the relationship would be less meaningful. But Messenger doesn't share that property --- you have to bother to click on someone's name and you have to bother to think up a good message to send them. That means it's no worse than any other IM client, with the strong advantage that your real-world friends already use it. You get to keep up with them in the way you want to, and they get to keep up with you in the way they want to.
Best of both worlds?