I can feel your pain, I can't stand seeing myself stutter on video playback, it's definitely painful for a lot of us. However, I'm sure a lot of non-stutterers have milder insecurities when they see themselves speaking in the mirror or via video. For instance some of my friends often quote that they cringe hearing themselves.I feel as humans we hate seeing ourselves from another perspective, as we imagine how others perceive us. I've learned to block these negative thoughts when I have proof(watching video playback) of how others see us, it absolutely changes nothing!