To me there are 4 levels.
4 - Fans who like the show well enough to show up at the occasional convention and maybe buy a prop if the price is right.
3. - Fans without inhibitions who show up at lots of conventions in uniform. They might be able to look at a prop and tell you which show it is from.
2 - Fans that spend hours discussing canon, hate anything new, and are obsessed in figuring out what happens during gaps of the overall Trek universe story line.
1. Fans that spend $20,000 turning the basement into a Enterprise bridge or show up in court wearing a ST uniform.
I'm a 4. I enjoy being around 3's. I frequently find 2's to be irritating. I'm afraid of being labeled a 1.
That seems about right. I'd make some slight alterations to those levels, but I'd say you more or less got it.
I'm somewhere between three and four, I suppose, though I've occasionally stopped by to visit level two.