I see parent’s general point being that some people work in p2p mode, whatever the medium is.
Here facebook is the tool, but what matters to them is not to get random info through the feed. It’s to ask people and hear what people have to say, often very close people (family, friend, real world connections). In this respect messaging could be the main use actually.
This is the equivalent of some of our parents who wouldn’t open the phone book to find some garagist when they have car issues. They’d phone a friend and ask them for recommendations.
> It's the equivalent of people who always used the phone, and didnt give a toss about the internet. I 'm not sure why it's alarming
People who used the phone weren't deluged by calls designed to make it impossible to distinguish bot-strewn propaganda from organic activity of real-life friends. (We did get plenty of junk calls, but they were easy to distinguish from the real thing, and people were motivated to avoid them, not to get deeper into their filter bubbles by seeking out more of them.)