Nah, if it was common knowledge not to repair anyone's gear for them for if to me, the repairer, said "Hmm, the reward seems too outlandish, allow me to report this person to a GM, so that the proper channels can direct this fellow to a correct reward amount, but I shall not tell them, less the reward be true and I be made the fool!"
I'm sure if we all thought like that, it would be fine.
But instead, first I repair it, I collect my reward, and once one receives a a rather large reward, one usually celebrates, none of this "Haha, I stole that guys money just now."
But then, to call me a GM on me, then call me a thief, after doing nothing wrong, herp derp, man is the system sure wrong when I can reported and demonized for simply playing the game.

Sure I understand he was tired, but you don't start blaming the guy you hit after you fell asleep at the wheel, and from what I understand he still received SOME of the money back, unless I'm confused of course. Even in the days of FFXI, if someone miss-bid on certain items, every once in a while you'd be able to hear a wonder story about him getting his money back (Don't you guys dare stand up here and say "NO, FFXI community was perfect! They'd always give back whats not theirs!"), cause lets just say I even paid 500k for a stack of earth crystals, yet did I up on a high horse and say, "Hear ye hear ye! If you stole 500k from me give it back!" Cause then you'd just have a confused group of Jeuno folks.

Cause when I hear the word thief, I think of person A is scamming Person B. Not Person B made a mistake that benefited person A. Unless... Nick Zealot broke into the OP's account and put all his money into one repair...

But I think looking at those logs, it all could have been avoided if he didn't threaten to call a GM on him so quickly, soon as someone threatens to sue me, as a reasonable person, I'd stop talking to that person until proper authority looks things over and issues a rightful claim.

(@_@ all that looks a mess... I must be tired... ; ; )