[skybrian]

Unfortunately, lots of people don't cite news articles at all. They just post memes.

But for people who do want to post a news article, it seems like there are lots of workarounds, like quoting and citing, or an indirect link through Twitter.

It will be a question of how smart Facebook is about blocking stuff. I'd guess they wouldn't be any smarter than they have to be to maintain plausible deniability.