This is an interesting point and theory. Over the last couple weeks, of the challenges I've recieved only three challengers have beaten me, One being Jotr (With his ass high archery level, jerk), and the other being AdamBigBoy and Merven, both using fists and berserk mode. Iron armor is the max allowed in my gym, and I found it weird that unarmed was doing so much, more than my axes at 550ish. (Adam had around 200ish, Merven around 100ish level unarmed) - maybe McMMO buffed unarmed? Maybe not? Maybe all are hacking, maybe none? No idea.
On the subject of aimbot - I have no idea what that is, only that the rumors used to fly with Jord using it, and it helps ensure hits all the time or something. From what I heard, theres no way to verify it, as I don't think Jord was accused or found out or what not.
Just adding what I've observed, sorry if someone is trolling and possibly hacking.