Geeks don’t all like the same stuff. Really.
What sets us apart isn’t necessarily a particular set of identical interests down to the last detail, because we don’t have that. Some of my friends look at me funny when I state that I’m not really big into superheroes. Sure, I liked Superman and Batman when I was a kid, but I didn’t delve into comic book culture. Others did, and that’s their bag, not mine.
On the flip side, I became a Unix guy many, many years ago. I adopted the credo of “small pieces, loosely joined” and joined the call of the Free Software Foundation with a full-throated voice. Other geeks are still Microsoft aficionados, though some at least have compromised with Macs. We don’t have to like the same things. (Though I do wish Richard Stallman would shower a little more frequently.)
So just because somebody proudly displays a label, you shouldn’t assume she’s just like everybody else who wears the label. Those labels are pretty broad, after all.
(Yes, this post is just a venting due to specific conversations I’ve had back here in meatspace.)