Honestly I think the long intro's at the beginning of videos (for example this one - a jtf.org logo displayed on the screen for 33 seconds) which have no content at all but are advertisements - these take away a great deal from the video. People will not stare at a logo for 30 seconds and then watch the rest of the video unless they are already a JTF adherent. Anyone else, new to the movement, new to the message, not already emotionally invested etc etc, will simply close out the window and stop watching when there is too much fluff at the beginning of a video. Perhaps if people are very drawn into creating these graphics and designs/advertisements, they should move them to the end of the videos after the message has already been given over. Or flash a very brief JTF logo for 1 second or two and get right into the content of the video.
In summation, the lengthy intro's defeat the purpose of the video and no one will keep their attention long enough to stay with the video.