Lol.
Actually, according to Marco "Loot is not influenced by skills. Loot is influenced partly by looting avatar, partly by weapon used and other factors".
If my memory doesn't fail me, the respective answer was given in one of the IRC chats of Stratics HoC for PE. Not sure if those are still available around.
Interesting, but we must remember he also repeatedly says "all avatars have equal chance". So whatever he is trying to imply, we must assume it fits into both statements.
Theres a lot of talk about different weapons making it more likely you will loot different types of items (no different in TT I assume). Maybe M avatars can loot more M stuff. I have no idea, but still, that would give everybody equal chances, but still rely on those factors. Complete speculation though.
Also, by partyl being influenced by avatar and weapon, it could actually simply mean that the formula they use to simulate random uses these two factors in the equation, amongst with a ton of other stuff.
A random formula can't exactly be true random... SO invariabably it will rely on some things (in my limited programming knowledge).
However, when considering that you can never program true random, it is important to note that you can actually never simulate true random (e.g. flipping a coin is always biased dependant on the way a human flips a coin), and that, in fact, computer simulated randomness is in most cases more random than a "real life" random event.