Thank god you are around! I could not stand the new "update". It was driving me crazy to have to zoom all the way out to get at least 6 thumbnails on my 27 inch screen. And on the laptop I only had 4 by default... It feels like something a 5 year old would use. Will still send more feedback to youtube though, since I would prefer not to have to use any extensions for something as basic as thumbnail size!