History TheyWastedAPerfectlyGoodPlot / TheFairlyOddParents

* In "What's the Difference", Crocker's stirring stick gets replaced by Cosmo and Wanda's wands. This could've been a good opportunity to have him serve as the secondary threat alongside Mandie by tracking down Timmy's fairies and attempt to capture them by using their magic against them, but instead (and much like in Mandie's previous episode), he serves as the episode's RunningGag and he never once figures out that he has two magic wands in his room.

* In "What's the Difference", Crocker's stirring stick gets replaced by Cosmo and Wanda's wands. This could've been a good opportunity to have him serve as the secondary threat alongside Mandie by tracking down Timmy's fairies and using their magic against them, but instead (and much like in Mandie's previous episode), he serves as the episode's RunningGag and he never once figures out that he has two magic wands in his room.

* "When Losers Attack", the VillainTeamUp episode in Season 8 involving Vicky, Crocker, Foop, and Dark Laser, missed a very good opportunity to bring back some of the show's previous antagonists, such as Francis, Bender, Norm, the Pixies, and even Foop's parents, Anti-Cosmo and Anti-Wanda. Instead, the episode uses the only villains that have any sort of prominence throughout the later seasons.

* "When Losers Attack", the VillainTeamUp episode in Season 8 involving Vicky, Crocker, Foop, and Dark Laser, missed a very good opportunity to bring back some of the show's previous antagonists, such as Francis, Bender, Norm, the Pixies, and even Foop's parents, Anti-Cosmo and Anti-Wanda. Instead, the episode only uses the villains that have any sort of prominence throughout the later seasons.

* "When Losers Attack", the VillainTeamUp episode in Season 8 involving Vicky, Crocker, Foop, and Dark Laser, missed a very good opportunity to bring back some of the show's previous antagonists, such as Francis, Bender, Norm, the Pixies, and even Foop's parents, Anti-Cosmo and Anti-Wanda. Instead, it only uses the villains that have any sort of prominence throughout the later seasons.

* It was implied that Vicky had some kind of a FreudianExcuse in "Snow Bound" on why she acts the way she does. Unfortunately, it never explored beyond that.

* "Chloe Rules!" begins with a scene where Crocker is choosing the classroom hall monitor. He picks his nephew, Kevin, over Chloe, both out of favoritism and to teach her that life isn't always fair. This seems like it could set up a rivalry between Kevin or Crocker and Chloe, but Timmy simply wishes that Chloe had the position. Kevin is abruptly dropped from the episode, and Crocker's later appearance doesn't have anything to do with this moment.
* Crocker in the Season 9 episode "Fairly Old Parent"; in this episode, Crocker's mother gets Poof as a fairy godparent, and this could put Crocker in an interesting role where he tries to capture a fairy now that one's in his house consistently - however, when Wanda acknowledges this, Jorgen dissmisses him as "not being too much of a problem"; Crocker is barely prominent in the episode, and he never finds out that Poof is always in his house.

* "The Boy Who Would Be Queen" revealed that Trixie [[HiddenDepths has a tomboy side]], and hides it because she's afraid of what others would think of her if anyone found out. What could've been an interesting StoryArc about Trixie coming to terms with herself was abandoned in favor of her [[StatusQuoIsGod retaining]] her AlphaBitch status. It was never mentioned again after that episode, and, thanks to Trixie pretty much disappearing from the show after her VA left the series, probably never will.
* Some felt "The Big Superhero Wish" and "Wishology" should have had more action sequences, and that Tootie should have been involved in the latter.
* A lot of fans cried foul after viewing "Escape From [=UnWish=] Island", feeling it was horrible use of a potential villain (in this case, Gary, Timmy's former imaginary friend) who wasn't even wished away in the first place, and especially the AssPull ending the writers came up with.
* [[CrossOver Jimmy/Timmy Power Hour 3]], which was originally was supposed to be a GrandFinale for [[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius both]] [[WesternAnimation/TheFairlyOddParents shows]]. Who didn't want to see a 3D Dimmsdale, Crocker spazzing out in 3D, or the alien Mark Chang in 3D? There was a brief glimpse of a 2D Retroville, but not enough to see what the rest of characters from [[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius Jimmy Neutron]] look like in 2D.

* Lots of fans felt disappointed that Trixie and Tootie never got to interact with each other when they appeared in the same episode.

* Throughout the show, there was a RunningGag of Timmy's dad's hatred of the Dinklebergs, sometimes for the pettiest reasons, which apparently lasted since his childhood. Sadly, it was never explored beyond that. Who didn't want to see an episode that explained how Mr. Turner's feud with the Dinklebergs started?
* This was also a common complaint leveled against Season 10. The premise of Timmy sharing his Fairies with another character would be far more interesting if he were sharing them with an established character such as AJ, Chester, or Sanjay rather than with another new character.
** Another aspect some fans expressed is that since this apparently carried on after Poof went on to do his own thing, this could've been a good chance to age up Timmy a bit to at least a pre-teen (12) and make him a mentor to Chloe. He would've been slightly older, wiser and had much more experience, as well as being a good transition into finally letting go of his fairies when the time to do so came.
* The idea of Timmy getting a cool magical pet could've been interesting: the pet could've been something unconventional, like a dragon or an emu, it could've been a competent and protective guardian, and there could've been stories about Timmy learning responsibility in caring for another creature. Instead, Timmy gets an uncreative animal, a dog, that does nothing but act like a fool and teaches no real morals.
* A number of fans were disappointed that Chloe was chosen to be a part of the Squirrely Scouts, which was a ''boy scout'' group, and some of them thought it was a missed opportunity for her to be in the Sugar Cream Puffs, a girl scout group, as a foil to Timmy and a potential ally to Tootie.

* "Chloe Rules!" begins with a scene where Crocker is choosing the classroom hall monitor. He picks his nephew, Kevin, over Chloe, both out of favoritism and to teacher her that life isn't always fair. This seems like it could set up a rivalry between Kevin or Crocker and Chloe, but Timmy simply wishes that Chloe had the position. Kevin is abruptly dropped from the episode, and Crocker's later appearance doesn't have anything to do with this moment.

* This was also a common complaint leveled against Season 10. The premise of Timmy sharing his Fairies with another character would be far more interesting if he was sharing them with an established character such as AJ, Chester, or Sanjay rather than with another new character.

* Throughout the show, there was a RunningGag of Timmy's dad hatred of the Dinklebergs, sometimes for the pettiest reasons, which apparently lasted since his childhood. Sadly, it was never explored beyond that. Who didn't want to see an episode that explained how Mr. Turner's feud with the Dinklebergs started?

* [[CrossOver Jimmy/Timmy Power Hour 3]], which was originally was supposed to be a GrandFinale for [[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius both]] [[WesternAnimation/TheFairlyOddParents shows.]]. Who didn't want to see a 3D Dimmsdale, Crocker spazzing out in 3D, or the alien Mark Chang in 3D? There was a brief glimpse of a 2D Retroville, but not enough to see what the rest of characters from [[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius Jimmy Neutron]] look like in 2D.