It’s a different scale only in the timeframe of a single campaign. 3P trackers have an *ongoing central vantage over many campaigns, giving them data which they

It’s a different scale only in the timeframe of a single campaign. 3P trackers have an *ongoing central vantage over many campaigns, giving them data which they accumulate and sell to each other, causing leaked “private” data to accrete and spread in essentially a viral fashion. The resulting dataset over even short periods (< 1 yr) time is comparable to a total datadump, including an accurate social graph. A “very specific pivacy concern” it is not.