WYSIWYG. (What You See Is What You Get.) It isn't hard to understand is it? So why do some gamers think it's OK not to adhere to it? I would understand if it regularly required obscene amounts of GS work, or vasts amounts of scratch-building, but 99% of the time it doesn't. There is nothing more irritating than ignoring an enemy unit you believe can't do any harm, just to find out that at the critical moment it has an Icon or Locator Beacon allowing that unit to deep strike and mash your Land Raider into the ground. AAAARGH. Now don't get me wrong I'm not some kind of rules lawyer, when you are playing practice games in a local club environment proxying units is OK. No one wants to spend money on units they later realise they will never use, but when it is competitive surely even the worst gamer can understand the common decency in WYSIWYG. Or maybe I am playing the game all wrong? Maybe it is all about the win? In my next game maybe I will fore go all of the moral obligations that make me not only a compassionate gamer but also a decent human being. Win at all costs will be my catchphrase and then again maybe not, as I know deep down it is not who I am. 9 times out of 10 I will give my opponent a buy when they forget to roll for reserves or when they declare an assault I will let them shoot the unit they forgot.
Looking at the above it becomes startling clear why I sometimes don't do so well at tournaments, but of course I am a nicer person because of it.