Marina Twelve and batty batty bats both well said.. I don't think this term can be taken as black and white, nor will it ever have good vibes when it's brought up. Because of what it's based on "a quack psychologist trying to explain away transgenderism", it will never be well accepted.
I also don't think any one term can describe a person much less a group of people, this is a varied and complicated issue that has a long way before it can be defined because it's so hard to know what each person is feeling, sometimes the individual cannot even express themselves.
However I don't want this term to ever die simply because some of the attributes describe some people quite well. I almost wish there was a movement to draw some of these terms out, and create a new definition.