I wouldn't have gone that extreme. Maybe give way the laptop and not post about it online. I would have been on the daughter's side but after hearing her father's side, she is just a brat.
Based on the responses, what he did just made it look like that is why his daughter is bratty in the first place.
But ranting online about your parents is no different than ranting about them in your journal or to your friends. I don't see the difference. You can rant about your parents and your parents can still find out. You can write about it in your journal and your parents can still read it. Post it on Facebook and make it private, your parents can still hack into your account to read it. I assume that is how the father saw it or how else would he have seen it? How are kids supposed to rant about their parents? Or are they to bottle them all up inside because it be so disrespectful if they did?
Really, if you find that your child had said those things about you, talk to them about it. It just means they are having issues and are unhappy and maybe they aren't seeing the big picture and their perspective is off. But that girl just sounded like a brat and the chores didn't sound bad after the father explained how she was to do them. Okay it's not like she has to mop all the floors in the home or do everyone's laundry or make everyone's bed. I am sure other kids in her home had other chores too. The girl was just exaggerating. it's possible there was a miscommunication and he didn't explain to her she only has to mop two rooms and she only has to make her own bed, do her own laundry and what dishes she had to do, etc. Really none of her chores are hard at all and won't take her long.