User Activated

Stores the time when users got activated.

This is mostly an API module. All it does by itself is storing the UNIX timestamp when the user was activated (last time), and feeds that info back to the $user object upon user_load(), and (with proper permissions) to the user view (user/%user) and user edit (user/%user/edit) pages. Should you make use of that info for anything else, have the {user_activated} table JOINed to your query by its uid field.