We'll create fresh WordPress site with LH Add ID Columns installed. You have 20 minutes to test the plugin after that site we'll be deleted.
LH Add ID Columns adds functionality that should be in core. Namely displaying columns listing the user and post ID’s on the appropriate admin screens in wp-admin. All such columns are sortbale.
This is extremely useful when you are needing to work with posts and users both in the backend and in the database.