I don't think it would be unreasonable at all to ask him to send whatever was generated by the Treasury funds back to the forum since he was already being compensated for holding the funds. It would be unethical to keep them, even if it's not technically a violation of the agreement.
Bringing Ethics into play - surely the Treasurer should of asked permission to use the funds for his own personal gain at the time of the incident?
but it's... a bit tacky
a bit tacky is how I would describe what women wear on a night out in Newcastle, using forum funds for personal gain and not mentioning it - it only coming out when the resident robot did some digging - well that is just plain old grim.
None of us would of imagined the amount of shitcoins/forks/airdrops that happened since the original agreement was put together, and props to OG for doing what was right returning the original funds and no doubt going through the aggravation of getting the BCH ETC over to Theymos.
I guess OG could make it right by disclosing how many of the GBYTE he earned and either offering to send them, or disclosing how much he sold them for and offering to send it to the forum donation address - simple enough to clear this up if it was just an error on his part.