I don't think you should generalize people who support censoring hate speech as defending sex offenders. There may be a small group of people who happen to do both, but most of us who have better morals would generally give the benefit of doubt to victims when there's no credible refutal of the claims. I haven't been following this specific case though so I can't say any more than that.
As for diyhrt.wiki, they added a prompt asking you to confirm you're over 18 a while ago. Of course people can just lie, but even if you do that, the site does warn of possible risks and recommends having a blood test taken once every 3 months for the first year. Also, while it's good to be cautious, the risk is still not that big. If we were talking about surgeries that would be riskier, though you can't exactly DIY that.
All analytics data collected by your iPhone is viewable under Settings -> Privacy -> Analytics & Improvements -> Analytics Data, or via a computer. None of it is hidden from you. And they have published privacy labels for their own apps a long time ago, so there's nothing inconsistent here.
As for diyhrt.wiki, they added a prompt asking you to confirm you're over 18 a while ago. Of course people can just lie, but even if you do that, the site does warn of possible risks and recommends having a blood test taken once every 3 months for the first year. Also, while it's good to be cautious, the risk is still not that big. If we were talking about surgeries that would be riskier, though you can't exactly DIY that.