Ivo Andrić, Meša Selimović (and a few others) wrote a lot during their lifetimes. Judging by the Facebook quotes, they wrote at least twice as much after that…
Everything that’s on the Internet should be a fair share: if you can get it without paying, go for it. It should be the publisher’s prerogative to protect its content.
I’ve noticed that most genuine Facebook users use it as an Internet filter of some kind. Someone should explain to them that Internet has more to offer than FB, and that is not necessary to access all of its contents through FB.