Transparency in how ads are targeted would go a long way. Personally, I would appreciate a legal mandate that every targeted advertisement must include a link

Transparency in how ads are targeted would go a long way. Personally, I would appreciate a legal mandate that every targeted advertisement must include a link explaining which demographics or criteria are being used to target the ad. Ideally the ad would also need to identify which criteria were applicable to the individual who was shown the ad, and where that information came from. That requirement might be onerous to implement, but maybe it could kick in at a certain revenue threshold for the ad network. Imagine if people had to be told that they kept seeing embarrassing ads because their bank sold their interest in [product category] to a marketing agency. Or if you could inform your aging relatives that they shouldn't trust ads which target them based on their past multilevel marketing purchases. I can dream...