Lee doesn't call himself Dr. At all. There are only two things he has which say Dr Lee Powell on them. One of them is the first bankcard he recieved just after completing his studies, the other is everything connected to this podcast. In fact, he'd probably be pretty uncomfortable with how often I've used Dr on this website. Which is partly why I've called him Dr Lee Powell so often. Also, it's a Dr on the podcast. That's pretty cool.
Also, he doesn't do social media. He hasn't got a Facebook page or a Twitter handle, he doesn't believe in them. And what's more, he thinks you're pretty silly for doing them yourself. Lee would much rather read a book... Hard to argue with that logic.