Fringefan

It got next to no prozine publicity and Los Angeles newspapers ignored it, so the fringefans didn't know about it.

Source: wiktionary

I repeat my contention that absence of critical sense is one of the marks of the fringefan, and introduce the corollary (observable from the earliest days of anything recognizable as fandom) that argumentativeness is one of the common denominators of the [trufan] (I hate that term but it carries a useful sense).

Source: wiktionary

Some were undoubtedly fakefans and fringefans, and there was I'm sure a strong surviving increment of Trekkies, as well as a high proportion of what might be called Jedites.

Source: wiktionary

Depends on what you want from a con, but I imagine that the name GoH attracts the fringefen who would not come otherwise, and those people pay enough money so the con can book all the function space it wants to.

Source: wiktionary