I think this is unethical and it won't work anyway, the people who still have IE6 have ignored warnings like this for years or don't have control. I saw someon

I think this is unethical and it won't work anyway, the people who still have IE6 have ignored warnings like this for years or don't have control. I saw someone using XP the other day who didn't know that other browsers existed (other than IE) and Safari was even installed but she didn't know how it got there (I suspect quicktime) or what it was. The IE(7) she had crashed on virtually every link she clicked on due to an old toolbar that probably only worked properly with IE6. The machine was also dead slow due to 512MB memory and loads of task-tray stuff. Although she already had IE7 I could easily imagine, similar users not being capable of doing upgrades especially on dial up or not wanting to because it might break. I would have thought the best thing a lot of people could do for the web is actually offer to sort out a few of their non-techy friends computers, which I think would be more effective than a warning message.