I guess it depends more on how you use it. To me facebook was always more about sharing stuff with people I know in real life. I probably wouldn't post pictures from my kid's birthday here but that's exactly the kind of thing I would do on facebook. For better or worse, virtually everybody has a presence on facebook even if they don't use it much. It makes it damned convenient for that sort of thing.

On the other hand, if I were going to write an article or a story or something then I would use wordpress or something similar. I might share it on facebook depending what it was but it wouldn't start there.

With something like wordpress, blogger or steemit, you typically want to maximize your audience. But with facebook and other social networks it is often about limiting your audience to a certain group.