"During one of my early seminars, there were a bunch of seminar junkies there"

This quote by Leonard Orr is describing a workshop he held early in his career. The phrase "workshop addicts" indicates that the participants of the seminar were not there to learn, however rather to go to as numerous workshops as possible. This might be due to the fact that they were trying to find a quick repair to their issues, or due to the fact that they were trying to find a way to make money. It might likewise be that they were simply searching for a way to pass the time. Whatever the factor, it is clear that the attendees of the seminar were not there to learn, but rather to go to as many workshops as possible. This could be seen as a sign of the times, as people are often looking for fast services to their issues, rather than making the effort to find out and comprehend the product.