There's definite legal liability here. Kiwi Farms was organizing doxxing that was directly leading to real world harm. The heirs of the next victim would have

There's definite legal liability here. Kiwi Farms was organizing doxxing that was directly leading to real world harm. The heirs of the next victim would have a colorable claim against CF for knowingly enabling Kiwi farms to continue organizing doxxing campaigns. CF could probably prevail in court, at least in the US, but it's always better to avoid lawsuits if you can.