History YMMV / PennyAndAggieMissingPersonCyndiAndCharlotte

* BaseBreaker: Right up until the strip that confirmed Cyndi's CompleteMonster nature, there was considerable, even [[InternetBackdraft heated]], debate within the fandom as to whether she or Charlotte was the worse person.

* CompleteMonster: Cyndi fits all the criteria for this trope:
# The story shows her manipulating Charlotte into suicide not simply to save her life, but [[ForTheEvulz for her own amusement]]. In addition, we are shown an extract from her private journal in which she outlines her plans to manipulate Daphne and Meg, among others, into killing themselves. Finally, Cyndi had earlier been shown (albeit to a subtler degree) manipulating Michelle into developing an eating disorder; that this was her intention is confirmed by Cyndi estimating later in her journal that Michelle would've been dead in about two weeks if "the Peacies" hadn't stepped in.
# Cyndi's ManipulativeBastard ways are PlayedForDrama, in this storyline and in previous ones featuring her. Even the [[TheChessmaster master manipulator]] Stan finds her intimidating, and even TheFundamentalist Charlotte, with [[TheBerserker berserker]] tendencies, considers her an evil that must be stopped.
# No justification is ever offered for her misdeeds, other than mental illness ([[WordOfGod Campbell]] has said on the forum only that she has elements of antisocial personality disorder and narcissistic personality disorder [but without being a textbook case of either], as well as traces of the psychotic delusion that the universe exists solely for her benefit).
# Cyndi never performs a selfless act and never shows remorse for her misdeeds, whether they be feigning sexual or romantic interest in others, helping to break up a relationship, or manipulating others into killing themselves. What's more, she derives BetterThanSex [[{{Sadist}} pleasure]] from her actions. The closest Cyndi comes to possessing a relatable human trait is when she reflects on how her ''inability'' to relate to others makes her isolated and somewhat lonely, hence her crush on Sara-as-Lady-Macbeth. However, that loneliness never prompts her even to try changing her ways.
# Due to the nature of her mental illness--a complete lack of empathy, conscience and remorse--a HeelFaceTurn, even a RedemptionEqualsDeath, would be wholly unrealistic. Thus, her fate in the end is to suffer assault, confinement, torture and potential murder at the hands of a character too much of a wild card for her to anticipate, and as an indirect result of that, to see the testimony of her own journal condemn her to involuntary psychiatric commitment and thus removal from the story.

* MemeticMutation: "Hee." Although Cyndi's [[CatchPhrase signature sadistic giggle]] had appeared a few times before, its appearance at the moment of Charlotte's suicide attempt solidified its association with Cyndi, such that it appeared often in FanFiction, and became an in-joke on the forum (e.g., [[LampshadeHanging lampshading]] one's avoidance of typing a single "Hee" in a post lest it give the appearance of Cyndi having written it). Campbell himself said that he nearly had Daphne say "Hee" in [[http://www.pennyandaggie.com/index.php?p=1234 this later strip]], before realizing how readers might take that, whereupon he changed it to "Heh."

# Cyndi never performs a selfless act and never shows remorse for her misdeeds, whether they be feigning sexual or romantic interest in others, helping to break up a relationship, or manipulating others into killing themselves. What's more, she derives BetterThanSex pleasure from her actions. The closest Cyndi comes to possessing a relatable human trait is when she reflects on how her ''inability'' to relate to others makes her isolated and somewhat lonely, hence her crush on Sara-as-Lady-Macbeth. However, that loneliness never prompts her even to try changing her ways.

* BaseBreaker - Right up until the strip that confirmed Cyndi's CompleteMonster nature, there was considerable, even [[InternetBackdraft heated]], debate within the fandom as to whether she or Charlotte was the worse person.
* CompleteMonster - Cyndi fits all the criteria for this trope:

* MoralEventHorizon - Cyndi manipulating Charlotte into attempting suicide.
* PortmanteauCoupleName / AscendedMeme - Cyndi refers to the former Stan/Brandi couple as "Standi," well after the fandom had coined that name.