Best Practice for Managing Outdated Members in Transformation Rules?

We have recently received feedback from several entities regarding outdated account members that still exist within our Transformation Rules.

Before making any changes, I wanted to gather input on best practices for handling these scenarios. Specifically, I’m unsure whether it is appropriate to remove or delete these members, or if they should be retained and continue to be mapped for historical reporting purposes.

If anyone has guidance or experience with managing outdated members in Transformation Rules, your insight would be greatly appreciated.