The very active & helpful msndude was Greg H. He said msndude is a rotating title/responsibility. Maybe it got passed on to a less attentive MSN employee. Hope not, Greg is a good guy.
But on Thanksgiving, MSNDude came back to make a post at WebmasterWorld. MSNDude said;
At this point there is no way to specifically say "do not index this piece of text". Something you could consider doing is only putting the survey on a specific set of pages and then using a robots.txt to block that set of pages.
Good to know he is well and still kicking. As for GoogleGuy...Still no signs of him posting since August 30th. We know Matt Cutts is alive, because he posts and writes on his blog almost daily, but GoogleGuy?
Forum discussion at WebmasterWorld.