I will say, that as much as Myers-Briggs exploits the Forer Effect, that I did notice a few trends, e.g. that I cannot stand folks in one particular group (and no doubt they cannot stand me, either!). And it did seem fairly good at distinguishing extroverts from introverts (assuming arguendo that such a distinction is meaningful).
Most personality classifications have some bases and some value, but this particular exercise really turned me off.
I'm ok with saying "this is an attempt at classification, it's an extra data point", but I'm not ok with resorting to scammy techniques, if anything it tells me that the classification can't stand on its own and has therefore very little value.
