While I understand that a lot of people don't consider someone a powerlifter until they have competed, I honestly don't share the same viewpoint. I don't see how paying an organization $100 to have 3 people judge me gives me the right to call myself something I can't call myself now. I love the sport of powerlifting, and one day, when I feel I am ready, I will begin to compete. I just don't feel like the merit of the information I provide should depend on having registered and given money to a federation.
Having said that, you're right, I don't have any experience weigh ins, mind set during meets, and what to do AT a meet, and hence, I won't touch those topics when I make videos.
I am really looking more to explain to people how to choose accessories, gauge their work capacity, eventually design their own programs based on their own needs, and just imprint a strong foundation of the important concepts of powerlifting like periodization, supercompensation, stress microcycles, dynamic efforts, etc....
I have made at least 3 bench programs, the one that BendTheBar put up on this site is here http://muscleandbrawn.com/lime-bench-press-workout/
And I have a youtube video explaining that one