Option to disable voting on posts with completed/Done statuses

We run a public roadmap for our game and use a “Done” column to showcase shipped work.

Players keep voting on those completed posts, which serves no purpose anymore and pulls votes away from active ideas.

It would be great to have a setting (per status or status category) that automatically locks/disables upvoting once a post reaches a completed status, while keeping the post and its vote count visible on the roadmap.