Science fiction fandom other groups including LGBT communities, libertarians, neo-pagans, and space activist groups like the L5 Society, among many others. Some groups exist almost entirely within fandom but are distinct and cohesive subcultures in their own rights, such as filkers, costumers, and convention runners (sometimes called "SMOFs"). Fandom encompasses subsets of fans that are principally interested in a single writer or subgenre, such as Tolkien fandom, and ("Trekkies"). Even short-lived television series may have dedicated followings, such as the fans of Joss Whedon's "Firefly" television series and movie "Serenity", known as Browncoats. Participation in science fiction fandom often overlaps with other similar
Joss Whedon journey towards self-awareness. As stated by Whedon, "Dollhouse" was about "the sides of us that we don't want people to see", sexuality and, on some level, a celebration of perversion, which he equates to obsession, "the thing that makes people passionate and interesting and worthy". Despite low ratings in its first season, the series was renewed for a second and final season. The reason for the renewal given by Fox's president of entertainment was to avoid any backlash that would have resulted from its cancelation. In reflection of Fox's disruptive involvement, Whedon lamented the loss of ideas of identity and