I wouldn't describe the response to the IE9 AMA as overly skeptical. People had some serious issues with what MS had done with IE in the past, and asked pointed questions. The response was lackluster, at best. I'm sure if they had just stuck their engineering team in there to begin with, it wouldn't have spun out of (MS's) control as it did. Microsoft screwed the pooch on that one. I don't think you can take that incident as being reflective of advertisers' experience on reddit.