A system has been added that will automatically add divination cards and other items to the item acquisition sections where appropriate. Entries added by this system will be shown as automatic in the item acquisition section.
Some pages will need to be updated to include
upgraded_from_disabled=true if they are not eligible for the system.
Some further details on what needs to be done can be found on Path of Exile Wiki:To-do list/Automatic upgraded from and issues can be posted on the talk page.
Tags are internally used by the game to describe certain properties/aspects of entities. Those are then usually used later to govern certain rules about those entities, such as which modifiers can spawn which items.
Most entities, like monsters, areas, mods and items come with their own list of tags. The tags are used to describe some properties of those entities, for example currency items are usually tagged with