Two that really stick out for me actually had the same batshit respondent, who became way more invested than the OP!
Thread one (which is one of my favourites in general): Mom sends flowers and pizzas to her daughter’s school so she will ‘feel special’ on her 16th birthday. She’s mad because the school didn’t ‘send someone’ to tell her daughter the pizzas had arrived and they went cold.
Most people had the sense to point out that school staff were generally busy actually running the school rather than acting as pizza delivery boys - to which the OP responded we were all terrible parents whose children she pitied, because obviously we’d never make them feel special. Amongst the laughter appears one poster who says that this reluctance to stand out and ‘put your head above the parapet’ is what’s holding people back in life, and how will they ever have the strength to make an impact? She somehow managed to bring it around to boys from ethnic backgrounds struggling at school 
Thread two: OP interviews a woman for a job where everyone has to do one Saturday a month. Interviewee says she can’t possibly as she is a mother. OP says it’s a condition of the job. Interviewee storms out, declaring she can’t believe they have no flexibility on this for a MOTHER.
Most people sensibly respond that, if you apply for a job that involves working Saturdays, you can’t declare yourself unavailable on Saturdays and then get shirty when you don’t get what you want. Enter batshit woman, who says companies like this are destroying working mothers’ chances and they should end the Saturday shifts. When it was suggested that might be impossible, she said that childless staff should be forced to cover them, as nothing they were doing could possibly be as important as childcare and they had a duty to support parents as part of society. Every response, she was batting back two minutes later with why she was right and everyone else was wrong.
I asked her how the company was supposed to hire childless people and force them to work hours parents didn’t without it being discrimination. And how, if the team was entirely made up of parents, they would handle that. And how, if they actively only interviewed childless people for a vacancy so that they could cover for the parents, they would stop applicants with children from claiming it was discrimination. And what would they do if the childless staff later had children - would they be sacked and replaced with the childless? Her endless stream of replies suddenly stopped. When I pointed this out seven hours later, she suddenly reappeared screaming ‘I don’t spend my entire day on MN you know!!’ Hmmm... especially not when you’ve been emphatically proved wrong just before suddenly needing to log off.