It would seem relevant to determine whether the signalling is a true reflection of reality. If I'm telling people I have PTSD without PTSD then it's entirely un

It would seem relevant to determine whether the signalling is a true reflection of reality. If I'm telling people I have PTSD without PTSD then it's entirely unsuprising that I show other bad traits. If I actually have PTSD then that's quite distinct and would be an interesting study- amonst the poeple who have X, how many of them signal X and why. Then of course how many of the people signalling (for example) PTSD are people with PTSD. It would seem like a really bad conclusion to say people signalling PTSD are psychopath if actually, there are people with PTSD and then psychopaths who signal PTSD - because you're essentially lumping people with real pain into a group with people who are exploiting thier pain.