Schumer (or whoever was doing the updates) was continuously changing the api to dodge accusations. I personally replicated the evidence (most critically, the claude meta tag prompt injection) but have no way to prove anything now that it is down.
The article is incorrect about categories of adult content being illegal in the US. The cited Miller Test has been used to justify bans of real life photography, but the supreme court has allowed first amendment protections for works of art that objectively do not cause harm by their production, which necessarily includes drawings like those on pixiv.
Studies purporting the harms of porn do not replicate, do not hold up to meta analysis, are not validated by ANY real world outcomes (sexual violence, teen pregnancies, etc. are all down, not up, in countries with access to porn) and are propped up by the religions puritans and radical feminists responsible for this renewed worldwide chilling of sexual expression.
Media effects broadly do not exist. The printing press did not cause any of its purported harms, nor did rock and roll, nor MTV. And whatever the next big thing is (VR?) will suffer the same baseless accusations supported by nothing but ideologically-driven cargo cult science.