HBO Max entered the new year with 37.7 million domestic subscribers, with an additional 3.8 million traditional HBO subscribers waiting in the wings to either jump ship or be willingly converted to an OTT way of life. Not that AT&T cares for details, preferring to wrap up the whole HBO package to ensure that everyone’s headlines scream 41.5 million HBO Max subscribers, regardless of whether the streaming app has even been downloaded. The real number of HBO Max “activations” was 17.2 million in Q4 2020, doubling from 8.6 million in the previous quarter. It means AT&T has a huge pool of consumers getting HBO Max either via cable TV subscriptions or AT&T mobile packages, but are yet to fire up…