I can't speak for all INFJs obviously, but I personally felt like a weird outcast because of feeling misunderstood...now outwardly is a very different story. I have never been an outcast in the eyes of my peers or society in general. To the contrary: I've always been well liked and successfull in the way people tend to define success. Quirky, yes, but generally popular. I'm not a stereotypical internet dweeb sitting in my mom's basement with klingon ears on plotting world demise, although I could be, nothing wrong with that. I actually function very well in the "real" world, so it's not that.
These forums are fun because I've not people with the same "headset" as me in person. And I've certainly met many strange and exotic people, cause I've been all over the place.
Just not people I feel kinship with... but if you don't think a person can in this modern world be genuinely born a little mythical, epic and dreamy you just wont like INFJs... God knows it ain't the first time I've heard "You think you're special somehow...etc.." Just being myself, thank you.