It's interesting that a group of Ts have come up with a new theory. It does sound like they changed it a bit.......
In answer to your question: I am here as I struggle with relationships and other things-- like quitting everything I start--college(way back when)hobbies and jobs.
I so understand that feeling of being alone in a crowded room. The youngest from a large messed up family(didn't attach to mother as an infant)... I have always felt invisible in crowds...

.... would like to feel different but I haven't figured out how... as I get so anxious the more people that notice me..... it's quite the quandry!
But you see.... there seem to be blurred lines as to disorders....

.... I think I am "almost everything- personality disorder"..... as I fit in just about all of them in one way or another.... (except anti-social... I do have remorse-- a very strong conscience)various T's have told me-- avoidant(i fear rejection to the point where I won't even try for fear of it), borderline(i dissociate and can feel very close to someone and then push them away in my 3-D life) and schizotypal(ideas of reference-- so I've been told, paranoia)...I just don't know....
thanks for sharing more info-- I like to learn as much as I can. and also thanks for replying.
mandy