"I'm a lifelong Disney nut"

Leonard Maltin's quote "I'm a long-lasting Disney nut" suggests that he has been a fan of Disney for a long time. This could suggest that he has actually been a fan because he was a child, or that he has actually been a fan for many years. It could likewise imply that he is a huge fan of Disney and has a deep appreciation for the business and its products. It could also suggest that he is a collector of Disney memorabilia, or that he has a deep understanding of Disney movies and characters. Whatever the case, it is clear that Leonard Maltin has a strong affinity for Disney and its items.