I was thinking Sera and Mwedzi too. Maybe Kimmaytube??
I don't agree with the way it was done, swearing etc. But I think she has a point. For someone who's not as involved in the hair community it's rare to see someone with 4zzzz type long hair. And yes, if I didn't know much about hair but was trying to grow mine out and all people kept sending me were 3c type looking hair videos, it may get a little frustrating.
I don't think she's being ignorant at all. If you look beyond the swearing and the frustration ("you make me sick" etc) I think she's just asking for evidence that her type of hair can grow long too, albeit her request could have been put across in a polite manner.
I say, if us 4zzzz naturals are confident that our hair can grow as long as anyone else's then pointing her in the right direction shouldn't be that hard a task.