Fascinating article to a layman who has no idea what goes on in the bowels AdTech. The scamming and detection cat-and-mouse game seems like such a zero-sum waste of energy/talent/servers/everything, but I suppose while there's opportunity to play these games and shovel money towards oneself, it will keep attracting people. And nobody seems to be losing except ad buyers (monetarily) and end users (via a shittier web experience). I guess my question to the author would be: Once you found out what it really was that you were working on, what did your internal ethical dialog sound like, and how did you justify to yourself continuing to work on it?