Mr. Soltani also claims that it is somehow improper to use any technology other than browser cookies to track website activity. In fact, countless online co

Mr. Soltani also claims that it is somehow improper to use any technology other than browser cookies to track website activity. In fact, countless online companies, including other major analytics providers, use a variety of different technologies to provide these services, including the persistent technologies Mr. Soltani targets in his paper. That's not a justification for doing it too. It's merely a lame excuse for unethical behavior. Also, I don't care if the guys at KISSmetrics are nice, kitten-loving jolly good fellows - that has absolutely zero relevance to the case at hand.