I think you'd agree that there is a stark difference between "babysitting your one sister" and "babysitting 8(!!) Children". Yet, the comment I replied to just said broadly "letting one sibling babysit will traumatize that child and they will hate their parents" which I refuted as not being the universal truth the comment made it out to be. "Don't cover your toddler's nose" or "don't let a toddler's head fall back or forwards" are such truths. "Babysitting leads to resentment of parents" isn't.
Also, babysitting and "caring for" are different things. While I absolutely agree that you should not be in a parenting role as sibling and being responsible for the upbringing of your younger siblings, babysitting usually means "watch for a few hours and keep the status quo so the child doesn't starve or kill itself while the parents are away", nothing more.
Besides, you closed your reply implying that I'm the outlier here because my experiences aren't doing what would happen in "an average home". Now don't get.me wrong here but isn't my home a little more average than your's? Like... Going by the numbers in the very post above.