Is there some truth in these stereotypes? Are many of them generally true, even if they are not universally true?
If there aren't particular behaviors/preferences/characteristics associated with typology, then what exactly are we categorizing here?
Many sterotypes seem to grow, cancer like, on some cernal of truth. For example, it is true that Si's and Se's statistically score less in IQ tests than the intuitives on average. It's the interpretation of this where the problems come about. How useful is IQ as a measure of intelligence anyway? Especially real world smarts. When was the last time you thought "Oh no, if only I was better at solving number sequences, I'd be able to save money by making my own furniture" OR "Damn it, if only I could understand abstract logic statements better, I'd be able to talk the shop keeper into serving me, rather than shutting up and going home."
The other source of sterotyping, is trying to find a way of making yourself feel superior. You'll see a fair wack of that on the forum as well.