Use some sort of assistance I think is very possible.
Hacked client? Not necessarily.
The stats and the characters… well, he could just have very good friends. I feed my friends (that need it) and get fed by my other friends (that are too good at this game for me)
The 2300 fame is a bit sketchy though… usually newer players have a hard time keeping characters alive.
That being said, innocent until proven guilty.