I think you're missing his point...you should support IE6. We all know it sucks, but why risk alienating 20% of the Internet just because you don't want to take the time to make sure your site complies?
I concur. Yesterday I spent an hour building a dropdown menu for a client that rendered correctly in Safari 2+, Firefox 2+ and Opera. Then I spent two-and-a-half more hours getting it to render correctly in IE6 and 7, rendering my page invalid in the process. Ick.
Yesterday I spent 10 minutes implementing the 'Son of Suckerfish Dropdowns' that works in all of those browsers. Why make more work for yourself if there are solutions already out there? :)
(I am of course assuming you mean a standard css navigational drop-down menu - you didn't specify.)
I think you're missing his point...you should support IE6. We all know it sucks, but why risk alienating 20% of the Internet just because you don't want to take the time to make sure your site complies?