The Adtec World Is Anonymized, Right?

i was in this email delivery world and came across the possibility of this identity resolution stuff. Some companies had an offering for a pixle that you could put on your side that kind of did this. It's taking anonymous adtec identifiers, right? Because the adtec world is anonymized. The marte world is pi. Basically, it's like you're en hitting people individually. But in order the adtecworld to work, you have to track people, and you have to basically show them targeted ads based upon the web side,. So now we're getting into the but legal part of this, right? Like, it's a bit surprising that that is legal, but that