Things to bear in mind to help keep this place a decent one to visit.
(1) Blame culture.
It's unpleasant when people feel that blame has to be assigned for everything that happens. You know, sometimes things are just too difficult; sometimes they just don't work out; sometimes there are simply misunderstandings; sometimes we make mistakes. These things happen in spite of the best intentions. Assigning blame slips very easily into believing that mistakes and misunderstandings and failures are always avoidable and therefore effectively deliberate, and so should be punished. Punishing other people for simple things that just happen makes one an unpleasant person; life is better for everyone when forgiveness and absolution are freely offered rather than having to be earned.
(2) Projection
We are here to discuss the cast of QC and their experiences. It may be interesting to compare our experience with theirs, and to see how we or they might have behaved differently to have a chance of a better outcome; we can learn from such discussions. However, extrapolating a similarity in situations into simply stating that the characters should then behave as we would have done (or even have already done in the past), without giving thought to whether that behaviour was the best option, or even an acceptable one - either for the QC character or indeed for oneself - commonly leads to exposing our own deficiencies or insecurities. These thoughtless responses are perhaps the ones which most upset Jeph, and which lead to the most unpleasant arguments here.
(3) Bigotry
Most of society is deeply sexist to this day in spite of what changes have been made over the last century. When discussing a heterosexual relationship, of course there is a man and a woman involved, and if one can be seen as at fault at some point, that will be the man or the woman. This self-evident fact doesn't make sexism. However, the moment that the character's sex is used to justify their behaviour, or to explain it, or to define what they should have done, then the line has been crossed. We should put effort into avoiding doing that, as a step towards making the world a better place for everyone.