Removing the program and its functionality, but this is an issue right now for the very reasons you list in terms of breaking things.
There are a lot of people that don't want IE on their computers, but can't take it off because of the residual damages caused by removing the executable.
Hope that clears it up for you.
It was mentioned on the 3/22 podcast that Tom and Molly want to be able to uninstall IE. I'm still confused about what people want when it comes to removing the web browser from windows. Does it mean:
-Remove the binaries which iexplore.exe loads in to function?
That will break a lot of things in the windows plaform such as rendering of help files, programs and services which communicate over http (web services), and apps which host the rendering engine.
-Disable access to the iexplore.exe
This seems much more reasonable. You can do this already.
Add/Remove Programs -> Set Program Access and Defaults -> Custom
and uncheck "Enable access to this program"
So, someone who is much more angry than I am, explain to me what you want.