Are you sure that when the advertiser receives user data he will not decide to use them in the future, which can lead to information leakage from the Ojooo platform?
Advertisers do not get absolute access to user information. When creating an advertising company, the characteristics are chosen to personalize the message. Personal data that can help identify a particular user is deleted from the data packet. The advertiser of the time can interact with the information, and after the end of the promotion, access to the data is closed.