I'm sorry but I think that's nonsense, or at the very least hyperbolic. Film posters, dvd covers, etc, etc, are graphic art, are ads first, fan created or no, commercial art. The dvd covers made by most fans here are created with promotional photographs, film posters , fonts, logos, etc, a barcode is simply a futherence to that, a preference.

If a dvd design I do is either for a professional job I've worked on or for a fan release that's done in my spare time, I'm still going to have it look professional, barcode included. And lastly, adding a barcode does not make or brake a work.

p.s. I'm not the first person to use a barcode in a fan edit and I won't be the least.