Let's just take a brief look at the history of click fraud across our industry and see what type of progress has been accomplished... and you may be pleasantly surprised: (searchmarketingstandard.com)
Qualitative measurement of this type of progress is difficult, but the goal should be a lasting cultural shift, not a data point to share with the world. (entrepreneur.com)
I'm a good two years or so away from this type of progress. (allaboutinterest.com)