Since the Double Xp server came up I noticed 2 players: cfulee and cfuxiong autorunning fwd with a cudgel, dying; rinse repeat. I never thought I'd see what looks like xp/gold farming in crpg, but it seems I have.
Looks like they have run macros on, and they sometimes change direction when they get stuck on walls.
No evidence, just my eyes and years of experience admining online games.
Check their k/ds and user behaviour and im sure you'll find their behaviour isnt legit.