Look, at the end of the day a few of us have tested it and I have personally come to the conclusion that this is just paranoia. Even if they did do this it would not matter, you adapt, you change, like we always have. IE 7 is not going to be the death of advertising online, there is way too much at stake, unless you are doing something really lame/dodgy I think you'll be perfectly fine. Nobody except the people using Firefox are going to be really aware of any flagging going on, and they use FF, so what's the difference? I used IE 7, there is no flagging, nothing that jumps out, and if it doesn't jump out at me; someone who was LOOKING then it's certainly not going to jump out at people who are average Joe Mac user. No warning on the Microsfot site is going to stick in peoples' heads enough for them to think "oh no, no green bar omg...x time".