I've added a few comments to their vids, and they never show up. My comments were not rude or anything like that, just technical discussion. E.g: in the following vid, in reply to a comment saying that GSP used this technique against Serra, I clarified that the under-over position was the other way around -- the way it's showed on the clip exposes your back. YouTube - Sprinter Escape: How to Escape the Lock Down (half guard) This is not the first time a legit comment of mine do not get approved. I understand it's their choice, but if you look it seems they want to build an internet reputation just allowing good, positive comments. Has this happened to you?