Trammell and the Digg crew were considering moving on from IE6 support, so they asked their IE6 users why they hadn’t upgraded. 70% of respondents indicated that the IE6 choice wasn’t their own, but that of their workplace environment.
This goes directly to why most folks use IE6: they don’t have a choice. Three out of four IE6 users on Digg said they can’t upgrade due to some technical or workplace reason.
Giving them a message saying, “Hey! Upgrade!” in this case is not only pointless; it’s sadistic.
This is going to be the frustrating part — it’s one thing for users who choose to use a crappy browser, but it’s another when a large population just doesn’t have a choice. Some really major consumer sites are going to have to kill IE6 support in order for admins to care.