I hate the idea of spying personally. While it may be a case in a real war the safeguard available to "real" fllets is unavalable in a game context. It is too dame easy.
that being said ways of simulating the effect of "real" spying could be done through other methods. Some have been mentioned others will likely appear. However without a post such as Gooks we may have ignored such possibilities used or not. Anything that supports dialogues of new ideas feasible or not is to be applauded.
To flip the coin for a moment, 'real spying,' even in the disasterous method that was seen on previous servers, has been implemented with success in other games. It is not impossible to create an environment where this works, even while preserving a communal sense. It isn't impossible.
However, the reaction of this particular community was paranoia and discord. We can cruise through old fora looking for the origional reasons we had, but it matters little now, as its illegality is more or less codified now. We can continue to edge back toward the crater that this left behind, oh so long ago, but even now the reaction is, at best, negative.
Even the suggestions to fake spying isn't spying, really. What is suggested is Scouting. Which is sort of like spying, but from a significant distance away.
So give not your russian a club for this is a gentleman's war, I suppose. As it should be.