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.
When Michelle rejected Zoey's affections after her sudden kiss, was her reaction just trying to remain calm and in control of the situation, or was she just painfullyOblivious to Love?
Michelle's huge Oh Crap face at the end of Zoey's arc, has spawned quite a few theories from Zoey being a Closet Key, to Michelle becoming a Heteronormative Crusader. But judging by the later strips (using the homophobia Landon's mom to get her to allow Landon dating Larisa), she was most likely shocked of how she hurt her friend's feelings. It is also a educated guess, that she apologized to her.
Dude, Not Funny!/Values Dissonance: Because of differing viewpoints on the nudity taboo, this strip passed in Germany without much issue, but in English-speaking countries, got Knörzer and Powree briefly accused of playing an 11-year-old up for fanservice.
Larisa accusing a teacher of having an affair with her in order to get out of homework strays into this territory. Such accusations can cause a lot of trouble for a teacher, even if they're blatantly untrue.
Ensemble Darkhorse: According to this, fan interest in Zoey went up a lot when she was confirmed to be a lesbian, with an unrequited crush, to boot.
Michelle as well has garnered a fan-base, most likely helped by her pulling a Crowning Moment Of Awesome to help along Larisa and Landon's relationship.
Joe Miller only appeared in two strips, but because of the funny (and heartwarming) twist at the end of his arc, quite a few want to see him return. See the strip and the comments here.
"Funny Aneurysm" Moment: This strip which isn't as funny when you realize that Woo hasn't appeared as much since Sandra and Cloud became a couple.
Although with what she has seen of Larisa, Landon's religious mother has at least some justification for disliking Larisa and not wanting her son to see her ... then Landon's mother sees her son with a painting given to him by Larisa for his birthday that she does not like, she then proceeds to deliberately destroy the painting, and threaten to beat her son if he ever sees Larisa again.
The Scrappy: Landon's mom, Harriet, for being the embodiment of everything people hate about Fundamentalist Christians.
Dorothy Cambridge, the new Biology teacher, isn't winning anybody over either, especially with her poor treatment of Cloud. You can see the strip (and the comments below)here.
Despite the characters' ages, there's a Love Triangle among her, Cloud and Larisa.
They are careful to depict the relationships of the main human cast (And their peers) in an age-appropriate fashion. Relationships are strongly suggested never to go beyond french-kissing, and even Larissa, who is depicted as being rather... er, precocious, has been shown to not really know how sex works.
Butterfly's arc is full of this from the implication that the Raccoon Goddess used eugenics, or selective breeding, to bring about a raccoon as gifted in climbing as Butterfly is, to the ending that seems to state that starting a family is the greatest achievement one can have regardless of anything else one has done.
Dorothy's story arc is supposed to be a parody of Straw Feminism, but winds up making it look like the authors are saying: "THIS IS WHAT ALL FEMINISTS BELIEVE."
The principal for taking away Larisa's insulin shots. This is hammered home when she explains that she needs them to live, and the principal interprets this as dependency. Lampshaded when Larisa proceeds to repeatedly hit her head against the desk.
Dominic in the "T Word". What do you say when your dad is caught by airport security carrying a squirrel in his luggage (albeit by accident?) Why, claim that it's a TERROR squirrel trained to attack, of course! *facepalm*
Dorothy practising sexism towards the male students in the school is this. Potential for lawsuits and losing her job aside (which adds to the principal's own score for hiring her and allowing her shenanigans to take effect despite this to begin with,) consider one of the students she had purposely screwed over. As many of the comments pointed out here, consider who his mother is. Sureenough....
Write What You Know: The writer of Sandra and Woo is very interested in raccoons and wrote several Wikipedia articles about the species.
Woolseyism: After comparing the German and English text, it is safe to assume, that most, if not all of the text is written initially in English and than translated into German (sometimes the cultural references, slang and word plays can be translated, sometimes not (both the ones in the text or sometimes even those drawn ones)).