Because you are either:
a) gonna get creeped out in, like, fifteen seconds
... or...
b) gonna get trapped by the mountains and mountains of seedy, disgusting, and thoroughly engrossing "true life" crime stories there.
Even as Scream spawned two top-grossing sequels, it also inspired crimes. For three or four years after its release, a number of teenagers were inspired to murder: a boy and his cousin in Los Angeles obsessed with the film murdered his mother by stabbing her 45 times; a man wearing the mask shot and killed a woman in Florida; a boy in France killed his parents while acting as Ghostface; and in England, a pair of boys repeatedly stabbed a third one, claiming the film had prompted them to do it.
Someone took those movies seriously? Neve Campbell barely took those movies seriously!