It's called a "shadow ban". It sounds like something really cool out of James Bond, but it's really just an underhanded way of dealing with people. I don't know whether to attribute this to nefarious motives on the part of Microsoft, or simple incompetence. It could be either, really, and since I won't join Zuckerberg's little "LOOK AT ME!!" cult, I guess I'll never know.
When I want to comment on news stories, I just go to Fark.com, where I have my own log-in that doesn't require a Facebuck membership. It's also a lot more fun than any news site comments section I've ever seen.
I see people are still upset about this MSN comment section and trying to figure out what the problem is....I gave up along time ago. Like you, not on Facebook.
I took a look at Fark.com, not sure about it, but might try again. That was about a year ago.
Is Zuckerberg the creator of Facebook...? That's how little I know about the site.