Which pieces of information to include:
- blockinfo
- Adds the information about a current block on the user.
- groups
- Lists groups that the user is in. This uses more server resources and may return fewer results than the limit.
- implicitgroups
- Lists all the groups the user is automatically in.
- rights
- Lists rights that the user has.
- editcount
- Adds the edit count of the user.
- registration
- Adds the timestamp of when the user registered if available (may be blank).
