>>33615716She's talked about it a few times, she knows that her fans love her deeper voice but she has a bit of a complex where she both naturally pitches up when she gets excited and feels that she needs to be excited for her stream to be entertaining. Because she knows her members are just there for her and she doesn't need to be super high energy entertaining she allows herself to stay chill and contain the rat voice during member's streams.
She has toned down the excited voice a good bit back from what it was based on member's feedback though, yeah