1) The only thing they really provide(non-aggregated) to advertisers is query params that say you arrived at the advertisers website through a click on a fb ad.

1) The only thing they really provide(non-aggregated) to advertisers is query params that say you arrived at the advertisers website through a click on a fb ad. They also claim to recognize adchoices optouts 2) Yes. https://www.facebook.com/ads/preferences/?entry_product=ad_settings_screen https://www.facebook.com/ads/preferences/?entry_product=ad_s...