I love how when a user makes an initial thread like this and it seems like it's the equivalent of the Fonz hitting the jukebox, IN FACT! I think I've seen this scene on happy days:
[ame="http://www.youtube.com/watch?v=3NxGO2lx-A0"]http://www.youtube.com/watch?v=3NxGO2lx-A0[/ame]
One thing that you should try to keep in mind uberrogo is that this is a personality type specific forum and as such, as with any social group, prejudices are bound to form, be it in this instance prejudice against ISTJ's or intelligent people being prejudice against people with athletic ability or what have you, it's human nature to form bonds on similar interest and to "rise up" in some sense against other groups that the group in question feel have wronged them in some way.
I agree it's a shame people do that, I can't say I'm not included, doubt anyone can, but one thing that you should notice, although yes members here have bad mouthed your MBTI type, how many of those have insulted you as a person, as an individual, it might be that your the exception, that you alone are single handedly changing INFJ perspectives around the globe.....ooooooor it could just be that the idea of ISTJ's as far as profile descriptions goes is of bad taste and thus when people are met that they don't like they are initially typed as ISTJ's, I'm not saying that there aren't some ISTJ's that are jerks cause there are, and of course there are some great ISTJ's, all in all I wouldn't take it personally, INFJ's have their own stereotype that other types dislike I'm sure.
Maybe this would be a good time for both sides to take a look at what they've said previously and consider the implications, likewise we should all we should keep in mind that prejudice is going to exist one way or another and although a person may hold a prejudice against a social group to which you are a member it doesn't necessarily mean that they dislike you as a person, not to mention it could purely be based on a misguided view, maybe instead of taking offense and lashing out thus furthering a stereotype instead seek to connect on a shared foundation and better explain or inform the person of well....in this case ISTJ's, how they see the world and how this may affect the type of language they use and the actions they take.
If the reasons why a person takes a course of action be it communicative or physical is known then the act itself will become less shocking thus quite possibly less offensive and maybe a polite corrective measure can be taken.
anyway, just my thoughts, feel free to ignore