Although it depends on the person, my interest in it tends to wane like day old milk in a hot greenhouse....until the milkman/woman/toadfishpig comes. I suppose I could swan around pretending to be an INTJ or something for a week, but everyone would know that because it was me doing it:
A) It shouldn't be taken the least bit serious....
B) Nobody would care or be interested in my type, since by now I and I suspect everyone else, is exhausted by my constant switcharooing and lack of self identity/ability to accurately introspect in revelation of a self.
Still....for drama's sake.
@Zarathustra is an ENTP who idealises INTJ characteristics in an exaggerated manner.