My site's browser stats:
Internet Explorer = 79,45% of which IE6 = 50,41% and IE7 = 49,24%
Firefox = 18,41%
Safari = 0,98%
Opera = 0,93%
This means that +/- 40% of all my visitors use IE6.
Should I consider them dummies I'm not interested in?
No, because they would consider me a dummy they're not interested in.
And the idea is that I want the people that find my site to come and see it, that's what I build my site for, they're my visitors and I consider their visit a privilege and they deserve to be treated as good as possible.
Not coding for IE6 is like refusing people without bigbrand watches to enter in your bakery, simply because you think everybody should be using bigbrand watches, or have blond hair.