If you just kept an eye out for recent updates and looked to see who had added them you could totally beat someone to a scoop. Or am I missing something?

You could, but if each "Question" was only one specific fact, and the people asking were anonomised and time-order-randomised then you would have to do a lot of heavy lifting to get the scoop. Plus if you published a 'scoop' ahead of the facts being checked, and one of the 'facts' ended up being bogus, then it wouldn't be any better than repeating a press release or re-blogging someone else's story.