tbf, the confluence of overpriced hobbies and autistic intensity of focus does open up a monetizable door. Most educational/tutorial content is very light on details, for efficiency's sake. This content is useful for people new to whatever hobby.

But, there's also always a smaller segment of people looking to advance from the beginner to the intermediate level, or intermediate to advanced. These people need all the details, and that market is often unfilled, depending on hobby. Even if it is filled though, at that level of complexity, there's usually more details that can be provided.

So, you end up with guys like AJ Pickett and his Dungeons & Dragons content. Not that he's autistic, he may or may not be. He's just a niche, successful, hobby-education-oriented content creator.