These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Author's Saving Throw: The revelation that Cassandraturned because she was being drugged by Deathstroke. It still left a lot of holes in the story, but at least it stopped treating her as the bad guy.
Supergirl: "Aren't you gonna...you know..." Batgirl: "Not unless you wanna see my bra." Supergirl: "Does it have a bat on it?"
Mary Sue: Cassandra tended to fall into this as her character went on. Even her origin story establishes her with super human powers simply by being raised as combat as her only language, a father who is supposed to be a previously unheard of super mercenary on par with Deathstroke, and automatic approval from the previous Batgirl Barbara Gordon after a lengthy storyline of Barbara disapproving of any new Batgirls.
Rescued from the Scrappy Heap: Wendy and her brother Marvin were heavy scrappies when they appeared in Teen Titans, but their brutal exit from the series completely reversed fan opinion over night. Wendy's appearances in Batgirl have been well-received, with praise given for the development of her character as she adjusts to being a paraplegic and continuing to be an active crime-fighter.