Most advertisers aren't throwing blind money around and most ads are sold by impressions and not clicks, so clickbots aren't that big of a deal. If you're able

Most advertisers aren't throwing blind money around and most ads are sold by impressions and not clicks, so clickbots aren't that big of a deal. If you're able to do attribution at the impression level, you're far less worried about clicks. With that level of tracking, you can build out an attribution model that accurately reflects the value of an impression and not waste money.