I don't want to tell you how to do things,
but I would keep it at 16:9 and tell those friends that if they want to view it they either need to figure out their compatibility issues or go to Vimeo. It makes a big difference in how good your video looks and definitely makes you look more professional. I know that I've wanted to embed some of your videos for WakeWorld, but the strange aspect ratio has kept me from doing so. Honestly trying to help, not be a jerk.