When users decide to rage-quit, they will often try to remove all of their previous contributions by editing them out. This event triggers an automatic "potential self-destruction of content" flag. But currently, the resulting clean-up must be done manually, which can be a pain and "noisy" if a user gets very far before being stopped.
I suggest an "undo user activity" option in the mod menu, allowing a moderator to revert any deletes, new posts, edits, and voting in the specified time frame. The time should probably be limited to something like 24 hours, but selectable.