There are quite a few posts about why Stan is disliked (he's a yutz). But there's one thing in the Stan and Dorothy story that really bugs me, and might be another reason to dislike him. In one of the versions about how Dorothy became pregnant she says she was unconscious, and that Stan must have slipped her something (to which Sophia says, Apparently). Now I get the quite funny double entendre, and I realise it's only a sitcom. It could also simply be understood as Stan being so inadequate that she felt like she wasn't experiencing the moment.
But this still bugs me. I know that #metoo wasn't a thing back in the '80s and that the event itself took place in the late 1940s when it would have been considered the woman's fault for getting into a situation in which she can be mistreated, which would explain why Dorothy would have just accepted it, no point going to the police.
Maybe I'm overreacting or reading too much into it. And maybe the joke is on Stan who was useless rather than Dorothy being unconscious. But the "slipped me something" suggests something more sinister.
Maybe it's because I love the Girls and the thought that that could have happened to one of them bothers me.
And this is in contrast with the 2 stories when Blanche's professor and Rose's dentist sexually harass the girls, and they take action.