YouTube just can't get a break, which is probably nothing new for it. As the world's biggest Internet video service, YouTube carries a heavy burden in protecting its users, especially the wee ones. Sometimes it gets things right, like when it announced less harsh strikes on first-time offenders. Sometimes it gets things wrong, like when advertisers pull out over child abuse concerns. And sometimes it gets things terribly wrong, like when it lets in kids' videos that apparently have been altered to include instructions on how to harm themselves with deadly results.