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.
Dawson Casting: At 34, Matthew Scott Montgomery, the guy behind the Rufus and Angus characters, portrays a teenage cast member on the show. Though his character's age was never mentioned, it was stated that he was supposed to be around 16 or 17 years old.
Averted with Tiffany Thornton and the other young cast members, Matthew was only 33 years old at the time when the show first aired on Disney Channel.
Shallow Parody: It appears whoever wrote the Harry Potter sketch only knew a couple of names from the book, as Harry, who was raised by Muggles in a normal English city, struggles with life in the real world, but Ron, who has very little normal world experience in the books, gets along fine. They also don't seem to acknowledge Ginny's existance.
So Bad, It's Good: "Socks with Sandals," "Ketchup on Everything"… most of the songs are this.