I get that too, but we wouldn’t want people buying alcohol or fire arms anonymously. Imo access to pornography should be like access to R-Rated movies or Parental Advisory music. Guidelines set either by the industries or government, but policed by parents.
The concept is not terrible, the implementation is. Passing this law with no secure way of proving identity is where it’s clearly just a Christo-fascist power move.
ISPs already have, and do sell that data.