How To Add A Custom User Field That Only Applies To Upgraded Users?


I am adding a yearly subscription upgrade option to my board and would like to display the name of user group which upgraded users are assigned to in their profile and messages as well. I would like it to be displayed in a special way though that distinguishes them from other members.

Does anyone know how to do this?

Also, if someone would be willing to do this for me for a small fee or as an addon I am willing to work something out on that end as well.