"Savvy end users"?
'Dickens noted that "large groups" of users have therefore not been clicking into compatibility mode and are consequentially getting the screwed-up page views. He claimed the button was working for "savvy end users" but not the great majority of web users who don't meet Dickens's savviness standards.'
"Savvy end users" use IE?
Note: apart from employees in antivirus companies who need to download malware as part of their job so they can analyse it.