What are you talking about? Based on the title, I figured they'd done something actually crazy, like not displaying posts until they're moderated. I can't imagine a scenario in which I would have even noticed this had it not been announced.
For this to impact you, you'd have to comment on a post, have someone comment in reply, and then comment again within a span of 3 minutes. I rarely even do that on Facebook, and it moves way quicker.