I'm a little surprised they would announce this as a thing they will do in the future, rather than something they've already succeeded in doing. Either they're

I'm a little surprised they would announce this as a thing they will do in the future, rather than something they've already succeeded in doing. Either they're arrogant about their ability to implement this (which may be well founded), or they're really doing it to assure less savvy advertisers that they're trying as hard as they can...