- People panicking over Miura-sensei, calling him subhuman ("man-thing"), fearing that Kanon would somehow fall in love with him (wtf?). I get that some older mangas have made some questionable choices to motivate the story, but Miura did absolutely nothing to warrant all the hate and suspicion (calling out a student for sleeping in class is absolutely nothing).
People are projecting their salt onto the teacher. Kanon is shown fangirling over a male character then getting blushy over the teacher. Then she was both relieved and a bit irritated that teacher didn't give her special treatment, implying if it's for him she wants to be special. Needless to say, the implication is a bit much for some people on a yuri website reading yuri tagged manga to handle.
Spoilers for ch8:
I haven't read ch8 but it's been spoilered by several people. I thought Kanon being straight/bi could be a possibility until the spoilers. I get you lot are excited, we live in exciting times after all, but please use spoiler tags in the future.
- Weird debate over how this manga is not yuri enough and should stay as subtext, even after Saki made it clear she had massive crushes on both her old piano teacher and would like to gay-marry Kanon.
Saki is full on "if I fall for another straight girl I'ma go full on ar15 incel" gay. Lmoa talk about bad luck (for a fictional character), being both self aware and constantly falling for straight girls.