She is a severely anorexic young woman. She also has a very large YouTube, Instagram and Twitch.
Without a doubt she is a negative influence on those who have an ED and for those who are looking for 'inspo'.
I have reported her content many times (Instagram even has Eating Disorder as an option for reporting), yet she is still there.
She is in the US. In the UK I think should would have been put under Section in order to receive treatment.
One very disturbing aspect is the relationship with her Mother, who is often doing the filming.
Banning her from SM won't help this woman, but might lower the risk of her influencing others.