I agree with the above. I have caught myself doing it dozens of times (truly) since our computers were upgraded to Windows 7 less than three months ago.
Another problem with this is that you don't know where the files get dropped. Every time I suspect I've accidentally moved something, I click Edit>Undo Move. And, sure enough, something was moved without my intending to do so. Already I'm annoying my IT
people to find one of the ENTIRE FOLDERS that I moved and didn't catch.
There needs to be a fix. I'm one of the power users who understand these issues. But my staff...they're clueless as to what's happening. Microsoft, I suggest you find a work around or allow people to toggle on a verification prompt.
The shrugging of shoulders w/ the 'Oh, well' answer is not an answer.