A friend who works in ad-tech tells me that Verizon's datasets from its Yahoo/AOL assets are "the creepiest" in the industry, but even with every dirty trick and every stupid, harebrained scheme, the companies formerly known as Oath (because everything Verizon did made their users swear uncontrollably) are basically worthless. Verizon's $4.6 billion markdown slices the book-value of services like AOL and Tumblr in half.