History YMMV / MiraculousLadybug

* [[PortmanteauCoupleName/MiraculousLadybug Portmanteau Couple Name]]

** The GreenAesop of "Action" is about teaching the viewers that plastic is bad and shouldn't be used because of the environmental damage it causes, but that very material ultimately turns out to be the key to the VillainOfTheWeek's defeat.

* ReplacementScrappy: Zoé Lee is seen as this by Chloé fans, and even some fans who otherwise are neutral towards/dislike Chloé. This is largely due to the fact that the writers have yet to develop her much outside of being "Chloé's complete antithesis/nicer replacement", down to her [[spoiler:being a SuperiorSuccessor Bee Miraculous wielder (which also angered fans who wished it would be given to an already established character)]].

** In "Copycat", Marinette bluntly tells the villain that liars are the real losers. In the slice-of-life half of the episode, she breaks into Adrien's locker, steals his phone, never owns up to it, and her grand plan to wrap this deceit up (after giving the villain a telling-off, mind you) is to feed him the classic fib that she simply found his missing phone by happy circumstance. It's further broken because the reason said villain was akumatized in the first place was in response to Cat Noir lying about his relationship with Ladybug, and he never gets called out on it due to her never finding out about it.

** In "Copycat", Marinette bluntly tells the villain that liars are the real losers. In the slice of life half of the episode, she breaks into Adrien's locker, steals his phone, never owns up to it, and her grand plan to wrap this deceit up (''after'' giving the villain a telling-off, mind you) is to feed him the classic fib that she simply found his missing phone by happy circumstance.
** The episode "Rogercop" is supposed to be conveying the message "don't be quick to point fingers," but the way it does it is flawed. When Chloé accuses Marinette of stealing her bracelet, Marinette starts pointing out evidence connecting some of her classmates to the bracelet, to which Marinette's father tells her she shouldn't be making accusations like Chloé is doing. However, that's not what Marinette was doing. Rather, Marinette was pointing out that in the absence of solid evidence, EveryoneIsASuspect, and she thus deserves to be treated the same as everyone else instead of singled out. Even her agreeing to having her bag searched along with everyone else's and innocuously stating that the thief must be someone in the room is treated as her making kneejerk accusations that are no different than Chloé's. Then, when the titular MonsterOfTheWeek tries to arrest the mayor for abuse of power, Ladybug gives a MeaningfulEcho by saying Rogercop shouldn't be making accusations, [[DesignatedVillain except he wasn't doing that, either]]; the mayor was clearly abusing his powers (and some that he doesn't even have) by having Roger fired for not arresting Marinette without sufficient evidence, something that took place in full view of a classroom filled with students, their parents, and the teacher.
** When Marinette expresses interest in trying out for in a video game tournament to spend time with Adrien in "The Gamer," she gets called out on it by Alya, who stresses how the tryouts are meant to select the two best students to represent the school in the tournament. Marinette then proves she ''is'' the best video game player by getting the highest score of everyone who tried out and thus securing one of the two tournament spots. However, she then gets called out for this as well, this time for being selfish and not thinking about how her friend Max cares about the tournament so much more than she does. Her later offering to drop out and let Max take her place in the tournament is portrayed as her doing the right thing, even though it goes against the earlier emphasis of how the tryouts are meant to select the ''best'' students to represent the school since Max only came in third behind both Marinette ''and'' Adrien

* UnnecessaryMakeover: Shadybug's [[spoiler:GoodMakeover]] is often seen as a downgrade from her original design, which had a cuter hairstyle and more design elements that contrasted her from Ladybug. Her makeover is essentially a less cohesive version of Ladybug's outfit.

** Another aspect of Ladybug and Cat Noir's inequality is their powersets, which have been unbalanced from the outset. Ladybug can summon something designed to help defeat the villain(s), purify magically charged beings, and undo all consequences of the battle with very few exceptions. Cat Noir can break one object, and this power doesn't have the same tide-turning guarantee as the Lucky Charm. At this point, it was expected, since the show seemed to have a "one power per Miraculous" rule in effect, that made this dynamic easily accepted, especially since the heroes were shown to be capable of using their powers creatively. Her later powers, like accessing the Miracle Box through her yo-yo and creating Magical Charms, however only stuck out more due to growing complaints over the show's treatment of Adrien, since the show decided that the only other character to get a similar buff in powers available was the BigBad, creating a notable case of CantCatchUp, not helped by several episodes where Cataclysm wasn't required, making Cat Noir seem more superfluous, beyond being a LivingMcGuffin.

** A few fans agreed that Shadow Moth's Sentimonsters were seriously underutilized throughout Season 4, as he could've had higher chances of winning if he utilized the power of Amokization more. In fact, he only ever created 11 of them (Light Eye, Banana Boom-Boom, Senti-Gabriel, Mega Leech, Guiltrip, Senti-Alec, Senti-Nino, Sentibubbler, Hack-San, Kuro Neko, and Strike Back; Optigami and Lolipop Boy don't count because the former was Mayura's creation and the latter was just recreated from Mayura's Amokization of August), leaving the Peacock Miraculous' potential seriously wasted.
*** In "Lies", while the titular villain most likely would've been a repeat of "Truth", it would've been easier for her to catch her victims by having a Sentimonster that could freeze them as she goes to freeze them for good.
*** In "Gang of Secrets", what was stopping Shadow Moth from experimenting with his new abilities to try to create 5 Sentimonsters while Akumatizing 5 people? That's right. Nothing.
*** In "Qilin", it would've been really interesting to see how a Sentimonster born from anger towards racism would act.
*** In general, it would've been interesting to see Shadow Moth only create an Amok during his usual Akumatization process in his lair onscreen (as Kuro Neko was made offscreen).
*** To be fair, though, it was probably hard for the producers to think of names, designs, and powers for the Sentimonsters. There's also the fact that having a Sentimonster in every episode would probably eat up the animation budget -- barring the fact that it was probably being eaten up enough already -- as well as time constraints, but still, the Peacock's potential was really wasted.

** ** In "Re-creation/The Last Day Part 2", it’s revealed at the end that Lila somehow managed to obtain the Butterfly Miraculous after Gabriel lost it during the battle, with a few people considering it a plot hole that she did so without either Gabriel or Marinette noticing her. In actuality, she isn’t shown inside the mansion at any point during the final battle, and is shown to have recovered it after a two month TimeSkip, which would’ve given her plenty of time to recover it.

** In "Re-creation/The Last Day Part 2", it’s revealed at the end that Lila somehow managed to obtain the Butterfly miraculous without either Gabriel or Marinette noticing her. It’s a big case of FridgeLogic for two reasons: One, the elevator that lead down to the underground chamber in Gabriel’s mansion, which was established as being the only way someone with no powers could get in there, got destroyed in the big fight between Bug Noir and Monarch. Two, Lila wasn’t shown to have any equipment that could’ve allowed her to climb/rappel down the cataclysm-induced hole leading to the secret chamber that Marinette made earlier, so how did Lila even get down there? Keep in mind that Lila wasn’t even akumatized or had any miraculous with her, so she had no powers that could’ve helped her get down there faster either. All she was shown to have with her was her laptop, and basically nothing else.

* CommonKnowledge: A lot of people mistakenly refer to the villains created by Hawk Moth as "Akumas". The Akumas are the magic butterflies Hawk Moth uses to turn his victims into supervillains, which in turn are called "Akumatized villains" or simply "villains".

** "Snapping My Fingers", is Gabriel's Argeste's theme song. It's a classy jazz piece that captures the hammy nature of his Hawk Moth/Shadow Moth/Monarch alter ego and how he easily he gets what he wants. While the song remains in French for the English dub, Gabriel having it on a mix tape that he dances to, Félix sings an even hammier variant in English during his MookHorrorShow moment with the police as Argos.

** Several ships involving Lila and Chloé have lost fans after the show made it quite clear they were both {{Hate Sink}}s. People who haven't usually apply FanonDiscontinuity, DracoInLeatherPants, or copious amounts of CharacterDevelopment. Marinette seem to be the exception to the rule (moreso in Chloé's case) as she is still quite frequently paired with them in fanfiction. Of course, come Season 5, [[BirdsOfAFeather Lila/Chloé]] actually ended up picking up steam as a ship.

** [[https://youtu.be/VnIxOtN2l3g Hawk Moth's Rap Song.]] Despite just being a promo created by Disney Channel, it's an epic villain song.