Specifically an “anonymous” coward named Drew DeVault who enjoys “NSFW” drawings of prepubescent girls[0] and has creepy opinions on female teen body autonomy[1], amongst other things.
[0] = https://web.archive.org/web/20131007121950/http://www.reddit... (specifically “Kaname [Madoka] in her swimsuit”. I assume the rules regarding linking to what is legally considered drawn CSAM is rather harsh, so for those who need proof of said claims Pixiv utilizes an ID string on every URL, and the “Sauce” hyperlink will direct you to it.
[1] “I'm of the opinion that 14 year old girls should be required to have an IUD installed. Ten years of contraception that requires a visit to the doctor to remove prematurely.” - https://web.archive.org/web/20130523180641/http://www.reddit...