Is there a major difference in fandoms out there, say, between the folks who love Harry Potter and those who demand The Snyder Cut of Justice League? Does Warner Bros. giving in to fan demand, at times toxic, set a precedent for future fandoms going foward? Tony Goncalves, the CEO of AT&T’s Otter Media division that oversees HBO Max, doesn't seem to think so. Goncalves spoke with Nilay Patel and Julia Alexander of The Verge for an episode of The Vergecast focusing on the newly launched streaming service HBO Max and all that it entails. But …