* CreatorsPest: Wacarb stated that he didn't care for his interpretation of Pinkie Pie, since her character was rather shallow and the ''Lord of the Rings'' references were starting to grow old. This is why he had her [[spoiler:[[KillAndReplace Killed and Replaced]]]]. He also stated that other seemingly one-off characters-- Nightmoon Mare/Luna, Trixie/Blue Twilight, Flim and Flam, etc.-- were admittedly shallow since he didn't have the foresight to realize that they would [[RecurringCharacter start coming back]].
* DevelopmentGag:
** In "Rocks, Clocks, and Two Stupid Ponies", Pinkie says "I was going to say something, but I forgot it." Wacarb really did have a different joke planned for that scene, and he forgot it.
** Wacarb recorded one joke for "How to Control Freaks"--about the implications of ''only'' the pegasi getting tied up--but wound up unable to use it because he couldn't find good footage to play the joke over, and the episode was running long anyway. Much later, he actually used the joke in "The Longest Recap", for the recap of "How to Control Freaks":
-->'''Fluttershy:''' Why do ''I'' [[FantasticRacism have to be tied up]]?\\
'''Rarity:''' Yeah, why does ''she'' [[TooKinkyToTorture get to be tied up]]?
* FakeNationality: The mane six all have distinct accents:
** Twilight Sparkle: American
** Spike: [[WhatTheHellIsThatAccent um...German?]]
** Applejack: Irish
** Rainbow Dash: ValleyGirl (She claims to be Swahili, but this is [[TooDumbToLive Rainbow Dash]] we're talking about)
** Rarity: Australian (purposely done very badly by a real Australian)
** Pinkie Pie: New Zealander
** Fluttershy: [[RefugeInAudacity (Offensively)]] Black American
* HarpoDoesSomethingFunny: As described in the "Behind The Scenes" video, Wacarb doesn't write or plan any of Rainbow Dash's lines. He just gets in front of the mic and says the first thing to pop into his head. It's his way of method acting, because Rainbow Dash doesn't know what she's saying, either.
* MeaningfulReleaseDate: "Pirate Shipping", in which the cast celebrates Heartsgiving, went live on November 28, 2013--the same day as that year's American Thanksgiving.
* ThrowItIn: Wacarb doesn't re-take lines. Ever. That one gag in ''The Longest Engagement'' where Twilight mispronounces the word "cordially?" That was Wacarb actually failing to pronounce the word, and just going with it from there.
* TrollingCreator: [[https://www.youtube.com/watch?v=C2CnbhHNydU A Very UFP Christmas Special!]]
* UnfinishedDub: UFP only covers the first four and a half seasons of the original show (plus the first two Equestria Girls specials).