"By censoring the debate on youtube, you're basically confirming to the wacko conspiracy theorists that there is in fact a conspiracy."

This is an excellent point. My view has been these are wackos but you can't silence wackos without giving someone in authority the discretion to decide who to label a wacko. But as you point out, having the discretion to decide someone is a wacko and has ideas too dangerous to be heard, at a large organized scale, actually is a conspiracy.