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I think you are reading way too much into this. Maybe we're losing something in translation here also... Burned-out in the US is used pretty freely, it doesn't carry negative connotations. In fact, it's basically a badge of honor since it means someone pushed themselves to the limit because they worked so hard. That describes your work ethic. And no, I do not think you are burnt out right now. Apologies if it came across that way.
Anyway, my intentions were never to offend. You're obviously an invaluable member of the community and an ideal Guide. As said previously, "I know you'll do a great job; I look forward to voting for you."