From a completely neutral point, since I have not had any reason to have any ill will towards any of the parties involved, here is my take on the situation...
1) I can understand why Grand Boss did what he did. On the off chance that it was NOT a bug it would be a smart decision to take advantage of a deal instead of passing it up to someone else. It sounds to me like he bought these up and then when Marp came online he did the logical thing and message him about it to confirm whether or not in was in fact due to a bug.
2) I cannot understand why the silver itself has not been removed from the game in the same manner as the eyes were. Obviously it would take time and effort to research and find out where/who to punish but is that not expected of the people in charge of enforcing the rules? If you're going to dish out punishment then you should dish it out equally and not take the easiest path to a half solution. As it was previously stated the only message that is being sent here is that you should exploit a bug you find as much as possible and then sell it all off to someone else before the bug is reported.
3) It is said that of course the buyer is at fault for waiting until after he purchased all of the eyes to report the bug, but this part seems to have been missed in the fuss:
Judaism wrote:Ultimately my findings were reported <12 hours after discovery and that includes a full night of sleep aswell.
It was not reported until after it had been exploited and then slept on?
MarpTarpton wrote:The player purchased the eyes and then reported that the eyes were on the stalls and asked if the quantity and low price was due to the existence of a bug. I find this method of thought to be backwards.
1) Player sees several of the rarest mob drop in the game going for half their value at a minimum on an enemy player's stall.
2) Player contacts friends in order to get loan for additional silver in order to buy multiples.
3) Player purchases fortune's worth of said item.
4) Player contacts a dev to ask whether or not a bug is involved for there to be so many so cheap after step 3 was completed.
1) Player sees several of the rarest mob drop in the game dropping in extremely large quantities compared to how they should.
2) Player farms several of these items.
3) Player asks friend to put these items in a stall and sell them to any sucker who will buy them.
4) Player reports the bug and then walks away with the cash.
Punishment should be equal and fair or should not take place at all.