This is The Stepback , a weekly newsletter breaking down one essential story from the tech world. For more on Hollywood trends and streaming culture, follow Charles Pulliam-Moore . The Stepback arrives in our subscribers’ inboxes on Sundays at 8AM ET. Opt in for The Stepback here . How it started Under David Zaslav’s leadership, WBD got very into the practice of shelving its own nearly completed projects in order to cash in on subsequent tax write-offs . To help deal with its looming debt and