Original link which seems to have been taken down: https://www.vice.com/en/article/group-behind-steam-censorship-policies-have-powerful-allies-and-targeted-popular-games-with-outlandish-claims/
Update from the author:
From Wikipedia about NCOSE
The National Center on Sexual Exploitation (NCOSE), previously known as Morality in Media and Operation Yorkville, is an American conservative anti-pornography organization. The group has also campaigned against sex trafficking, same-sex marriage, sex shops and sex toys, decriminalization of sex work, comprehensive sex education, and various works of literature or visual arts the organization has deemed obscene, profane or indecent. [...] The organization describes its goal as "exposing the links between all forms of sexual exploitation".
Doing the lords work by fucking up (lol) any discourse about sexuality.