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.
YMMV: Kim Possible
Accidental Innuendo: Kim asking Ron if he wants the ultimate ride is just one of the tamer instances of this.
Alternative Character Interpretation: A not-uncommon theory is that the series is actually about Ron and his growth since he undergoes the biggest change in the series and, as opposed to Kim, is actually afraid but powers through it to save the day anyway.
Ensemble Darkhorse: Shego and Dr. Drakken were originally supposed to be merely two of the show's rotating cast of villains, but due to their popularity were shown more often until they became regulars, and their personalities changed.
In the episode "Bad Boy", Standards and Practices wouldn't allow the writers to show Drakken making coffee. They suggested chocolate milk instead, and the writers turned that into "Coco Moo", resulting in one of the series' funnier gags. (The rumor that "Coco Moo" itself resulted from S&P forbidding the phrase "chocolate milk" is unfounded, as Drakken actually does use that phrase in the episode.)
The "good eating" episode, mandated by exec, but what we got was....shudder
Requested that the hats in "Showdown at the Crooked D" be called "Silly Hats" rather than "Stupid Hats". They even lampshaded it.
Drakken: The Silly Hat!
Shego: Not the name I would have chosen...
Family-Unfriendly Aesop: A subverted regular Aesop from "Return to Camp Wannaweep". You shouldn't be suspicious, and people can change...except for sometimes they don't, and suspicion can be a good thing.
Fanon: Wade's last name is never actually mentioned in the series, but all the fans know him as Wade Load, or Wade Lode, etc.
It's All There in the Manual. Some of the show merchandise uses Wade's full name, including the Disney Channel website at one point.
"Funny Aneurysm" Moment: Christy Carlson Romano fans might find the idea of Kim trying to break Hillary Duff's spirit in Cadet Kelly uncomfortable, after watching the same plot attempted by the villains in A Sitch in Time.
Germans Love Kim Possible: The popularity of the show in Germany is a major reason for its revival; Germany is also the only country getting complete season box sets on DVD outside of the US thus far.
Growing the Beard: Steve Loter came in during season 2 as a director and producer. Under his wing, the episode pace was sped up, and much more focus was put on Ron, Drakken and Shego.
Hollywood Homely: Ron's been mentioned by a number of characters to be less than good looking, to the point of being ugly...when actually, he's rather cute.
An interesting flip flop, as in the first season Kim can literally "do anything" and looks good while doing it without breaking a sweat. "I can do anything" is a self-admitted braggy motto. Kim can't cook, can't sing high notes, can't drive (immediately - this one makes less sense, as she's been driving bikes and aircraft already), can't sit at the Senior table, can't say "no" to someone in need, can't say anythingto her crush, can't resist a challenge. Ron points this out when Kim fails the driving test.
Kim: "I'm Kim Possible, I can do anything!"
Ron: "That includes FAIL, see the logic?"
Ron would acquire some new skill and Kim would gain some sort of character flaw or just stay the same. When he says Let's Get Dangerous he gets as suish as Kim was at the start of the series. Usually this is when Kim is incapacitated, which is far more often than a standard Mary Sue.
Back when the fandom was active, 90% of the captions for the various forum caption contests and threads were basically about Kim's insatiable sexual desire, usually shown with a picture of Kim standing next to a pile of knocked out goons or Ron or Drakken then the caption of her wanting more. No-one can keep up. Except for Shego.
Dr.Ann Possible. Full stop.
Moral Event Horizon: Warhok and Warmonga were about to take Kim back to Lorwardia and stuff her as Warmonga's trophy. And they say this in front of Ron. Not only their people have conquered and enslaved planets, but apparently they would gladly kill and mount a teenager who messes with them.
Monkey Fist crosses it in Season 4 when his obsession with Monkey Power reaches new heights and he makes a deal with the Yono.
Never Live It Down: Ron receives many "Jimmy Olsen" powers throughout the series, but the fans seem to have latched on to his one time usage of "Monkey Power" and the magical "Lotus Blade" and built on it and in the Post Script Season, the actual writers did the same.
What's The Switch is a pretty good platformer with a good plot and dialogue.
Periphery Demographic: For a show aimed at tweens, the show is remarkably popular among their parents and other adults, especially taking in the LGBT Fanbase aspect. It was also quite a target for Rule 34.
Real Women Never Wear Dresses: Generally averted. Kim can take on anyone in a fight, often appears more of a tomboy than Ron and doesn't often wear skirts or dresses outside of occasions and cheering. But she's also a cheerleader, has no aversion to the colour pink, and has stereotypical teenage-girl interests - dating boys, clothes shopping, soft toys, boy bands and such.
Amusingly enough, a lot (though not all) of "Ron turning evil" fics are less to get him out of the way for Kim and Shego to get together and more because.... Well, the Opposite Alignment version of Ron was arguably the coolest, most badass villain on the show!
Kim's father Dr. Possible also get this from time to time for being a major instigator in Drakken's origin, and just acting overly smug in general, so he's often treated like a bad father too even though he's clearly not. What's Hilarious in Hindsight is that his voice actor would later go on to voice a real scumbag father.