No. Just like Skydoesminecraft stole build it and put it on his server then called it "Build my block"
Technically, yes, they do. However, Copyright law outside of the US gets a bit tricky, and I'm not entirely sure how it works. On YouTube, you CAN claim copyright against a video, but it's... fun.
Most of the people don't know what copyright is until thier video gets flagged and gets taken down and then they cry Anyway flag dis fideo
yhea its lame, youtube only cares about music claims not about videoclaims from.someone with a bit more than 400subs