Nanny bashing or just massive over expectations of what a nanny can/can't do or expect. Plenty of reasonable ones, not all are bad, but some are just so crap. Makes my heart sink 'AIBU to expect my nanny to....' and you open the thread and it's just complaining that nanny was annoyed at working 100 extra hours a week, or didn't clean every inch of the house. Then there are the batshit ones, I still recall the one many years ago asking how do other families on here lock up every room of the house when employing a nanny, because of course the first thing they'd do is sidle into the master bedroom and fondle the bedspread.
Disabled loo/parking/wheelchair vs buggy on a bus bustup. I used to engage, try to give my point of view as a former nanny of a disabled child who's buggy WAS their wheelchair (complete with oxygen tanks underneath) and as a currently disabled person who isn't in a wheelchair. I feel that allows me an opinion, but the amount of threads or posts you see with 'they didn't look disabled' and similar comments is hard to fight.
Threads that tease 'AIBU to inform you all!!!!' and you open it and it's telling you a certain chocolate bar is in stock or a seasonal food is on the shelves. Just annoying.