Generally speaking I think it was interesting that almost everyone was identified through their profession. Whether problematic or not, I believe this is a necessity given the scope of the project, since it's hard to really know a 'public figure' well enough to emulate his or her personality. Some people did attempt this however, providing details of publicized events in their characters' personal lives.
I felt actually that I was fairly easy to recognize as Steven Spielberg. Due to the nature of the work he produces, it becomes very easy to pick him out once specific film titles are introduced. Other public figures not so intimately linked with their work were harder. Monica, as Dave Chappelle, was an interesting case. She played him much more covertly than I would have; she stuck to details about a show coming to Austin. I think a simple "I'm Rick James bitch!" would have done the trick.