Replying to @null and @therevoltingx, @BrendanEich, @PrivacyMatters, @kickstand, @acfou, @Nyury1011, @GregRizz, @JudSpencer, @theantitheory, @samtingleff, @mrr619, @WolfieChristl, @johnwilander, @johnnyryan, @brave, @iab, @IABTechLab
IDs can be legitimate when there is governance. That is how pseudonymous systems work: there are strong rules and cultures to ensure that reidentification only happens in the user's interest.
Your idea of governance is to abuse choice and to blame others. You don't deserve data.