[Ref]

The so-called hidden feature of killing the X Server by hitting CTRL-ALT-BS is totally awesome, more than handy at times (especially if one gets hit by bug #244713).

We cannot do without this, it is the very bedrock of the Linux desktop. What sort of person accidentally hits those three keys at the same time - accidentally people! It's hard to conceive of a situation where those three keys could, without the user intending, be pressed simultaneously.

Do not remove this feature by default, please don't.

Or, if you do, include an option in SaX2 to enable it so when I change the xorg.conf to re-enable it I don't lose it subsequently.