Ideas can have different ideation status that we can define in Control. At least one status in every ideation process is “closed” (or something like that, e.g. “duplicate”), meaning, that an idea - in one way or another - will not be further pursued.
That’s why we propose an option to disable voting for any given ideation status. This way users can’t vote for ideas with this status anymore.
If voting stays enabled, even though an idea is “closed”, it can cause user frustration and can also put unnecessary pressure and additional work on the community team when “closed” ideas still get votes.