It's useless unless they stop supporting older IE versions...
It is now time to stop talking the talk and start walking the walk.
If you're tired of supporting IE6 on your site, then stop. Foisting off the cost of transitioning everyone off IE6 onto a big company like MS is comforting but ultimately unrealistic and selfish.
It's their lousy software, it IS their responsibility to transition people off of it.
There are perfectly legitimate reasons why a corporation would continue to use IE6, despite its countless flaws.
IE6 is still perfectly serviceable for the vast majority of the tasks web browsers are put to.