I think it is pretty clear to almost all what WIS would consider collusion and what they wouldn't consider collusion. I think there is an ethics also involved outside the rules. It's a game I am playing with friends and I get no enjoyment out of being a dick or playing games just to try to win. Sorry, this game means more to me than just winning titles. That is where personal ethics come into play and we all have different personal ethics we live by and play this game by.
For instance, in all my D3 years I have never jumped a recruit already considering another team. D2 and D3, yea, but never at D3. Now, if I happen to be recruiting a guy during the same cycle as another coach and we get into a battle, that's another story. There are too many good recruits if you are willing to do the work, and right now too many SIMs teams, so less competition. There is also too little recruiting money in D3. In my opinion there is no reason to start battles. With that being said, every once in a while a coach will jump a recruit considering me. I don't like it and think it is totally unnecessary. And in the future, if they have done it to me I won't hesitate to return the favor if the recruit considering them is high on my list. But I don't "target" that other coach or his recruits. But not all coaches feel the same way as I do, and that is fine. It is within the rules. That is just part of my personal ethics for the game
So I always try to remember that some coaches play by different rules than I do, some are dicks, some will do anything to try to win, but most are great guys and good friends. After 7+ years of playing this game I have seen many great coaches win a ton of titles. None of them have to be dicks or play outside the rules. If someone is a dick, it is their problem, not mine.