They have to know how ridiculous that request is. Fuck asking someone to work 75 hours a week at all is already ridiculous. And it sure was shit eliminates the possibility that this person could have another job to take care of themselves, which they'd need as your offered pay barely covers a tank of gas these days, let alone food, rent and basic utilities. Oh, and they think someone can work 13 hours a day watching their 4 your children and still go to school? Take this person's kids away; they've clearly been doing way too much crack.
No, I believe it was Aristotle that said, "This generation no longer cares for the wisdom and advice of their elders! They instead seek opinions from their social networks! Now excuse me while I listen to his wise old angry person who agrees with me..."
This specific post might be fake because it is ridiculously low pay while having crazy high expectations. However, I worked as an in home Nanny while in college (2009-2010ish) and would regularly see and get contacted by people on Craigslist looking for 50+ hours of private childcare per week for multiple children for only what worked out to $3-4 per hour. The only difference is that those parents had very low expectations.