* BrokenBase: The entire Katara/Aang romance was this by the end of the show and the comics have made it even worse. Is it cute or annoying with the non-stop "sweetie" pet names and oogieness? Or for the ever popular [[TakeAThirdOption Third Option]] annoying, yet understandable given the "honeymoon phase" for new couples.
* FanNickname: "Book 4: The Promise" (since [[WesternAnimation/TheLegendOfKorra 'Air' was already taken]])
* LesYay: [[http://pics.livejournal.com/marikunin/pic/00167f63 Toph licks Katara's hand]] to show her what "oogies" are.
* LikeYouWouldReallyDoIt: Aang killing Zuko? Really? Even if we didn't know that Zuko is SavedByCanon, that's a hard plot point to swallow.
* NeverLiveItDown: Kori's determination to protect her hometown, proudness of her interracial family, and progressive view of the world's politics are meant to be her most inspiring traits. However, fans mostly remember her as the rebel who attempted to kill Zuko and [[KarmaHoudini faced no repercussions]].