He's either using a combination of a trainer and the "Mechquest XP and Gold generator" or just the trainer itself. The "Mechquest XP and Gold Generator" maxes the '100 floors' quest on mechquest...the reward for such is I believe 20k xp and 200k gold...? Can't be sure, anyways, it was released in several places. By asking for Rep for using a tool is, in my opinion, very disgraceful.
For the holiday items, he's definitely using a trainer. Just wanted to register an account to answer this question.
EDIT: Just found the forum deleted my link...PM me for it.