If I remember right the argument is something along the lines of "basically nobody respects it, and those that do are likely to be "good" actors anyway, so it h

If I remember right the argument is something along the lines of "basically nobody respects it, and those that do are likely to be "good" actors anyway, so it has nearly no positive effect and doesn't solve what it aimed to, while setting it to a non-default value gives all the fingerprinting systems one more bit to fingerprint of, so it also has downsides --> not worth supporting". EDIT: I guess a counter-argument is that if it were a recognized standard you'd have an easier time arguing that respecting it might be a legal requirement/it would encourage such legislation. DNT was originally inspired by FTC comments in the direction that it would be good to have.