What's RBF?

I mean, the "taxes/bills" she imposes on her children is pretty deranged/stupid. If it wasn't for that, if the brat really doesn't wanna help around the house, it's fine to pay them for it I guess.

And when I saw her smiling stupidly totally proud of her idiotic "make my children pay bills" system, it gave me the feeling she hates her child. That's it, just a hunch.