well to be fair, there are grey areas with everything.
However, the unwritten rules crap is SO stupid. Wasn't there a recent argument about bunting to break up a no hitter? Only problem was it was a 1-0 game?
I think in terms of fantasy, collusion/vetoing are the only two things that lend themselves to discussion. And adding/dropping players so the waiver time will result in no one being able to pick up a pitcher.
But in terms of most things, if its in the rules, its in the rules and ethics don't really enter into it, even though the two things are seperate but related.
I guess it kind of dovetails with the debate some people have with "Survivor." Is it unethical to lie in survivor to win? Or is it amoral, since everyone knows going in that it is a game of deception, and you almost have to do it at one point or another.