These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Draco in Leather Pants: Almost the Trope Namer. Many people, including J. K. Rowling herself, attribute the phenomenon to Felton's attractiveness, but he can't be completely responsible as the fandom had decided Draco was hot before anyone had seen a single frame of the first movie. In fact, the trope name comes from a scene in The Draco Trilogy, the first two installments of which predate the films. However, Felton's casting certainly contributed to the character's popularity among preteen and teenage girls.