What a dilemma brilliant !!!

Firstly I would be very impressed that she knew this and had done research herself. This show a great intelligence and that she is not controlled by the indoctrination camps we have (Schools). She would most definitively be congratulated on her knowledge and initiative.

Next I would go home an help her set up a @Steemit account. Making sure that I had blocked what I could using parental controls. I would not tell her off but I would advise to be careful on the internet as just in normal life the are bad things around but not to worry. 

I think if you make too much of a big deal over the bad. But still you need to be realistic an factual. So as not too cause 1 off 2 things :  1) it puts then off her clear passion for learning something she is interested in 2) Encourages them to look for this bad stuff. The Internet is a part of life now. 

One thing I would make sure I told her it not to spend too much time on it and to make sure she gets out into nature as well and learn that way too :)