I have no idea whether many or even any of these individual comments were thereby read: many were from people not even in the US, many were difficult to understand in broken English... some were blank, and one was actually "the wrong PDF" (someone's University parking pass). Before seeing the pile that was sent in, I had made it my goal this year to read everything published, but when I got through the C's I just couldn't do it anymore and stopped.
They seem to have responded to it quite well, in that it wasn't a major issue in either direction: I didn't hear anything (although I was fairly disconnected and only indirectly getting information, so I might just not know) of any complaints; it didn't seem to help, however (in that neither of those exemptions were accepted).