A little late, but I got some numbers from Mysta's birthday stream. Here are all the SC's thrown, sorted by currency. I feel this gives us a good view of the audience demographic. Also including a log of the SC's w/ username + message. I don't think its chinese antis trying to make Holo look bad, like some rrat that was spreading. This looks more like a large eastern fujo audience to me.
Bday Stream:
https://www.youtube.com/watch?v=p1gYwBDYGM0SC message log:
https://ghostbin.com/2ow9i (copy to notepad for improved readability)