There’s a difference between “nerd” and “dork.” Nerds have some there, there, even if it’s not as useful as being a geek. Dorks have no there, and cause discomfort to themselves and others as they try to pretend they do.
You’re right about that. I didn’t think about it
Exactly. It is important to distinguish between the three designations. Characteristics often overlap, but generally:
Dorks are awkward and tend not to fit in anywhere;
Geeks get really into a hobby or activity that has limited appeal and utility; and
Nerds are smart people who tend to become experts in a useful (or broadly interesting) field of study.
This is why typically you don’t hear people calling themselves geeks or especially dorks. Whenever people self-refer as nerds they are complimenting themselves.
John Kerry is the poster-boy of the term dork.