It seems to me that some of the most valuable information for an advertiser would be what kind of ads someone will voluntarily choose to watch. Saying they may not convert is like complaining that you can't eat free money.

> It seems to me that some of the most valuable information for an advertiser would be what kind of ads someone will voluntarily choose to watch.

Advertisers don't care about what ads people want to watch. They care about what ads convert.

It would be interesting to advertisers put out competing adds and users having the choice to watch them. Potentially some lesser known names could emerge, because larger companies already have recognition and would be less motivated to create voluntary ads.