I think the main issue in using this as a primary method of persona
creation is that it doesn't really tell you anything about how someone
will expect to use your product. Personas encapsulate sets of motivations
and sets of usage patterns; personality types don't quite get there, and
may be a bit too reductive to be able to easily apply to the design of a
That said, this kind of information may be useful in fleshing out one's
understanding of personas once they have been generated from field
data... it's an interesting idea.
What do you think about using one of personality type classifications
as a starting point in building persona? I like Kingdomality ( http://tinyurl.com/qntn7 ) since it is simple enough to keep in my
head and to apply on the spot even though it is not comprehensive.