I have seen Wolfs to be a pretty new character to MD and I think he does not know a lot of technices to gather, gain or trade heads, maybe this is why he might think this is cheating. You have to imagine, Z is a veteran player but not everbody does know him and noobs of course can´t. So it is ok from my point of view to say he is cheating if you might think so, but you have to show some evidences. If you only blame him therefore because you don´t know how some mechanics work, please stop it.