I believe Noble fixed his rank just after he posted this... there was some issue with $50K going missing from his account on skyblock. My guess was it had to do with buying Noble Member rank, which was what messed up his rank in the first place. Noble Member doesn't cost that much there so there may be other underlying issues as the people programming the system might never thought of and tested what would happen if someone tried to spend money to lower their rank. We can tell people not to do it, but it would be better if we could just remove it as an option. Hence why I asked him to post it under the bug section... my guess is, it could have contained more info for us to work on.
It's a bug, but since it wasn't properly formatted or explained in the OP, then I was unsure of it's purpose. But I'm sure that it's being resolved, so for now, we'll keep it here.