- Posts that are deleted during the waiting period would be discarded from the archive.
- Posts that are put on hold/migrated during the waiting period would have their waiting period extended toby $M$ days.
- When a post is deleted on MathOverflow, all of its archived revisions are marked as redactedretracted in a clearly visible manner.
- When a post is closed or locked on MathOverflow, some appropriate mark may be added near the link to the post on MathOverflow but the archived version would not undergo major changes.
Rationale: Archiving is fundamentally a one-way process: archived contents should never be deleted (unless there was an error in the archiving process itself). On the other hand, it is necessary to respect the users and the community. Annotations are the best we can do in this context.
Deleting, closing and locking are very different processes. Deleting is a clear redactionretraction and needs to be clearly annotated. Closing and locking have to do with the functionality of the site and don't seem to need much annotation.