They are fairly useless yes.
Done and encouraged by the kind of people who like to put into groups as if they should then be proud of something in their otherwise dull and pointless lives.

On the upside I don't really need to take a test to tell me I have the mental traits of a mastermind, evil or otherwise. You just kind of know it when you'd class evaporating the earth as a solution to global conflicts.
(Jeru The Cunt of Monte Cristo, Fri 28 Mar 2008, 11:53, archived)