I work in the ad industry. We take pains to make sure that everything is hashed as early in the process as possible, so we're basically just correlating hashes with each other. There's nothing personally identifiable.
I understand that it sounds creepy, but it's worth noting that advertising is what pays for all the free content you enjoy on the internet.
EDIT: Downvoted for comments from the industry. Thanks! Let me know if there's any questions I can answer for you guys.
I understand that it sounds creepy, but it's worth noting that advertising is what pays for all the free content you enjoy on the internet.
EDIT: Downvoted for comments from the industry. Thanks! Let me know if there's any questions I can answer for you guys.