It’s a common habit among more stringent horror fans and detractors alike to be overly restrictive regarding what constitutes a horror story. Detractors, be they overt or subtle tend to disqualify a movie from being in the Horror genre if it turns out to be too good or too successful, or both (for a recent example, see It). “Hardcore” fans, meanwhile, tend to exclude movies they deem not “horror enough”; usually anything that has too many dramatic elements (The Babadook is a recent example).
When discussing horror stories, very few things (if any) irk me more than people being so scared of (or having such disdain for) the dreaded “h-word” that they try to re-categorize a successful horror story. The wild financial success of It has put it in the crosshairs of horror-haters who apparently want to christen it a thriller or even a drama so as not to give credit to any movie associated with that damn h-word. Brian Collins at Birth.Movies.Death rails against this as well as I ever could, so I’m gonna go ahead and leave a link to his article here. Suffice to say, I couldn’t agree more with everything he has to say.