Because, as already mentioned before, in earlier times people were more amused than frightened by clowns. Comparing early clowns to horror clowns a. The evil clown archetype plays strongly off the sense of dislike it caused to inherent elements of coulrophobia; however, it has been suggested by Joseph Durwin  that the concept of evil clowns has an independent position in popular culture, arguing that "the concept of evil clowns and the widespread hostility it induces is a cultural phenomenon which transcends just the phobia alone".
In The Simpsons episode " Lisa's First Word "children's fear of clowns features in the form of a very young Bart being traumatized by an inexpertly-built Krusty the Clown themed bed, repeatedly uttering the phrase "can't sleep, clown will eat me Because It can shift forms, it blurs the lines between natural and supernatural.
Therefore, I will examine first hand experiences of clown phobia and its causes at the end of this paper. Gacy himself became so famous that people actually bought his drawings, portraying him inter alia as Pogo.
Herbert has tried many ways to destroy the costume, all in vain.
He shoots himself in the mouth, spattering the wall with rainbow blood, but he quickly regenerates and survives. However, the horror clown does not swallow the prey immediately but "eats fear" from the victim.