In response to the forum post here:
http://www.psychforums.com/dissociative-identity/topic71130.html

We sort of have DID-Dar, but its rather specific. TK, as an animalist, can detect levels of viciousness in others, but as a regular person, hes our instinct. By looking at people, he can see if they have "the animal" in them, which is just TK talk for "If they will attack for no reason or not". Were 100% always right, percentage wise. TK can always tell whos the most vicious and instinctive person in the room. If its not us, we find them just by walking in the room and being pulled to one person, like a magnet.

As for the posts "DID-dar" where we can find other DID-ers, no. I haven't met more than two or three in my life, so my DID-dar isn't awesome like TK's "Animal-Dar"

The best DAR, though? Chive on.