Good point. Although I've disputed a (inaccurate) copyright claim before and had it removed. Plus technically you're not meant to upload anything that you don't have the copyright for.

Twitch basically seems to be the only real competition at this point, but they are rapidly building up to take the fight to YouTube. They are publicly shifting away from the gaming focus and towards general content creation. This whole thing seems to be more in the hands of PR and network effects than anything else. Like if the Jiu jitsu community goes to twitch I have little reason to go on youtube anymore.