WolfWraith
I Love YTtalk
It's against YouTube's TOS to re-upload all or part of someone's video without their permission. It has nothing to do with copyrights at this stage.
youtube dot com/yt/copyright/
There's a video there to answer all of your questions.
just do a test upload and see if you get any copyright notices... remember copyright notices are fine just remove the video and it would go away.
P.S. You cant get an instant copyright strike but look out for the notices and see what they are claimed for.
I have never seen an instant copyright strike.... soooo yeahhhh ok thenUMMMM,
You can get an instant copyright strike. It's happened many times. You Also a copyright notice will go away if you delete the video but as i've said 100,000 times many accept your content.