There are scripts out there that have a /noop alias already, not because the scripters weren't sane but because a built-in command didn't exist (and they probably didn't know/like !.echo -q). A /noop that can't be overriden would be convenient until the /noop aliases begin to fade out (which I suspect it'll take quite a few versions of mirc). Does this warrant the exception? I don't know, but I know for sure that I'll be using !noop in any public snippets for quite some time.

/.timerQ 1 0 echo /.timerQ 1 0 $timer(Q).com