The general threads were full of knock-down, drag-out fights. They were awesome. I spent so much time reading them. Too scared to post in them, though.
The breastfeeding posters. Exhausted mums would post about how hard it was and ask if it was okay if they tried formula and they’d be told “breast is best, did you try a football hold?” There was also a lot of woowoo around breast feeeding.
Total opposition to any sleep training even the gentlest kind. “Oh, you haven’t slept for six months and you feel suicidal? Well, I wouldn’t allow my child to cry for five minutes because they will definitely experience raised cortisol levels that will destroy their lives but maybe you’re different.”
There were a lot of antivaxxers and people on their own vaccination schedules. I think those people disappeared to facebook groups because they didn’t like being challenged.