[IanCal]

I don't think "opening" applies at all, it suggests that they are somehow "closed" beforehand and they could be processed while keeping them closed. That's not the case.

> The bigger question is whether doing that to show ads is legal or not.

Yes, or possibly "do we want it to be legal?". We've not really been using this tech for that long, certainly not at this scale. It wouldn't be unreasonable to suggest that we need clarification on what we want the laws to allow and forbid.