He posted a TAS'd run of a map of Doom 2 done pacifist. Searched for it and found the same run, frame for frame on another guy's account, uploaded almost a year before. Notified the original owner.
Also, one of his two accounts has the current TASvideos published 0-star SM64 uploaded. The pre-video watermark is gone, but the watermark text during the initial scene is still there; he does say the run is not his, but aside from the text actually edited into the video, no credit is given other than "this run is not mine".
Also, and this is just a suggestion, but perhaps we should be making an off-topic thread about the Kaizo/Sketchhog issues and move the majority of this into that thread. As important as it is to spread the word so we can shut his antics down, we shouldn't be derailing this thread just for him. >_>
EDIT: okay, my fault... The video isn't changed. Also, tired from flying today, so here's the link I should have added pre-edit.
http://www.youtube.com/watch?v=cUAbnEw0o40