I respect that. My concern is that, for my list, I’m wary of active ambiguity like that because I’m trying to plan for situations where the creator is no longer reachable for clarification and someone might have only archived the description and/or metadata block.
(Plus, I’m just generally wary of ambiguity from all my time reading tech law blogs.)
Is there anyway I could convince you to tweak either the description or the metadata block so it’s completely clear to anyone who doesn’t read the comments whether you intend “your choice of CC-BY 3.0 or CC-BY 4.0” or for one to trump the other and, if so, which one?