Thats why they are "suggested".
There is of course no way to enforce any of that on players (the
bastard cheating operator must be another matter) and whats more it
should not be forced on players by code.
The etiquette section is really intended for veterans of the game and
server ops. I know for a fact some of the stuff mentioned under
"Good sportsman-ship" can make a new player feel pretty bad about the
game. I'd just like to see them have a fair chance of playing for
awhile before they give up.
I myself have gotten upset over slingshot suprise attacks, being
harrased endlessly while trying to coup, and pirate players (not
neccisarily recently mind you...) And I know in the VAX days of
old some players quit (forever) because of stuff I mentioned in the VAX
etiquette -
http://www.radscan.com/conquest/cq-ml/msg00043.html
And of course the "combat tactics" and "art of conquest" strategy sections mention all manner of CYA in many situations.
If you can think of better ways to present that and the mentioned intent let me know.