I don't find clowns scary, and I also don't like them. I don't think they have a place at Halloween. A big part of this feeling comes from learning about the history and development of the modern clown look, and its origins in blackface and minstrel shows. I see that, and the loss of interest and cultural cues in the "goofy" clown, and I can't help but see a bigger cultural problem in the transition to "scary" clowns. I don't think most people who use clowns as part of their Halloween thing have bad intentions, but I will never NOT think about the implications. It's a difficult thing to explain, and most people want to get defensive of their choice to dress as a clown, so I usually don't even bring it up.