I explained it's not worth it in the last sentence. It's year of work and millions in cost, and now regulation prevents tying PII from your purchase to the anon

I explained it's not worth it in the last sentence. It's year of work and millions in cost, and now regulation prevents tying PII from your purchase to the anonymous IDs used in adtech. You're going to get new ads anyway, retargeting campaigns rarely last beyond a few weeks from the last product page visit.