Half of Meg@cool's posts make no sense whatsoever, usually having some kind of dark humor to them. The rest turn into flamewars, like this one. Heh.
With that said, really, how many of you had classes where you could actually draw off of others' work? Maybe problem sets in math and econ. Certainly a violation of the honor code (if the school in question had one). . Other than that, it was extremely rare where you could even cheat. Come on, this is a troll. Just to play along...
As for spreading out notes between people, I couldn't care less. If people specialize and teach a topic to one another, who cares? The objective is met in that the people understand the material. If time is saved in the process and everyone understands, good for them. Go out and enjoy life. This is blatantly being called cheating (per thread title), so this is obviously not what is being referred to.
Cheating on tests would have been difficult in most of the classes I took, as well, but I guess it's doable in the sciences. Definitely affects others and not something purely utilitarian.