Has anyone been banned for using Perform yet?

[Aerilon]

I'm not sure why SE is going so crazy about the copyright stuff. There is tons of precedent in the game industry for players using in-game musical instruments to cover their favorite tracks in other MMORPGs such as Lord of the Rings Online and Guild Wars 2 for instance. So either it is some weird Japanese Copyright Law or their Legal department is just overly insecure about being sued. Either way - the Legal guys need to understand they have licensed us a piece of software or a tool - and therefore they cannot be sued if a user decides to use the tool to commit copyright infringement. If that was case Adobe would stop selling software. You don't sue Adobe when an individual profits off of copyright infringement when they produced their content with Photoshop for example.

[Aylis]

So either it is some weird Japanese Copyright Law or their Legal department is just overly insecure about being sued.

Could very well be the case, as far as I know unless you're claiming the piece as your own creation or if you're trying to make a profit off said material. Then it falls under the fair use deal. If you could get in trouble for doing a cover of a song, then all the musicians that upload cover versions of popular songs would have gotten banned from Youtube a very long time ago.

*EDIT*
Then again it could be very much just worry over the memories from the time the band Powerman 5000 accused SE of using one of their songs and threatened lawsuit.

https://www.youtube.com/watch?v=Nw13dYbJLXU