User blog comment:GothLoliManda/About the Newest Sims 3 Patch/@comment-82.22.208.189-20120919130718/@comment-1997588-20120919143515

There's a new Advanced Population Option in the game option that disables other Sims to become celebrities, as well as one that disables playable Sims, IIRC. If you're using testingcheatsenabled true, you can shift+click your Sim and set their celebrity level and points.