Warner VS Youtube

I feel that the face that Warner Bros are preventing regular people from posting covers of songs is getting to be a little ridiculous. Even videos that have a song in the background? Why? I feel like its more of a benefit because people could be watching the video and wondering who the singer really is, gaining more exposure and free advertising for the artists. These people are not making money off of doing covers, and its obvious that it is a cover. I can see Warner Bros side, but I don't think its as valid of a reason, especially trying to take innocent people to court. It makes me afraid almost to put any video up on youtube. A student where I was student teaching made a pixilation video with a popular song in the background, and it was credited, but youtube ended up deleting it because of the song. I thought it was unfair, and almost ridiculous in that matter. 

It is very hard now to copyright anything that is online. Any piece of artwork I post on the internet is basically not mine anymore. There is a lot of debate on who owns the artwork when you post it, even posting a piece of your work on Facebook. There is tiny print on Facebook that says they own any picture you post on their site, which makes me not want to post anything on there.