Yeah; Star Trek doesn't really have fans.

It has the fans.

Star Trek's fandom is the primal fandom, the fandom by which all other fandoms evolved to rule the Earth like collectable-obsessed dinosaurs. If that's an exaggeration, it's not by much.

Trekkers? Trekkies? Whatever They're Called, They've Lived Long And Prospered.

Today, Star Trek is a million-dollar franchise that encompasses thirteen feature films, seven TV series, countless video games, a mythology's worth of books, and enough plastic action figures to populate several Alpha quadrants.

But all of this would not exist if not for its fans. When Trek was threatened with cancellation after its second season, a grassroots letter campaign, led by Bjo and John Trimble, managed to keep the show on the air for another season. This produced enough episodes for syndication where "Star Trek emerged as such a phenomenon that it was resurrected as an animated series and, in 1979, a big-budget feature." (Source)

Since then, fans have made Star Trek a pillar of pop culture. Trek cosplay can be found at most any convention. Films like Galaxy Quest are basically two-hour riffs and references to the series. Trek's dialogue has entered our cultural phrase books, including "Beam me up, Scotty" and "Live long and prosper," and its alien languages have dictionaries devoted to them. There's even a Klingon Language Institute. No; really. (Source)