I think we're looking at this from a completely different mindset. I don't understand how the proposal would improve the signal to noise ratio. If two replies to the same question provide the same answer, is the first one automatically signal and the second one automatically noise?

If you take that argument further, asking a question that's already been answered is noise. I'm comfortable thinking that, within reason — we do have FAQs for a reason — but it's very easy to take it too far.

Is there something wrong with having two similar answers appear within a few minutes of each other? I think not, and that's why I don't see why this idea would be useful.