There are still going to be realistic limits. If a news item comes at them from out of the blue, and then they're expected to comment on it, does it make sense to assume that they're going to know enough about it to give an informed answer?
Having a thirst for information isn't the same as actually being informed. I made my proposal so that Freepers could have a chance to satisfy their thirst before answering the question being asked.
Proof? If I know the H2 Hummer is a large SUV and I read that the tires fall off unexpectedly, I want to know why. That's a weak example, but it's one I can think of off the top of my head.