Personally I don’t like them at all. Its not a fear as such, but I would happily cross the street if it meant avoiding a moustache, Im not too sure why, I just feel oddly uncomfortable around anyone with one. Like my Aunt who has a fear of snakes, and can hardly enter a zoo just because of the thought that there might be one around.
Beard and Moustache combos are all right, infact I like them.
But Moustaches on their own, no matter what style, they actually make me shiver.