We should (in my opinion) stop the controversy about James because sometimes we make mistakes and I find that (except pretending to be Sam) but according to the law (true example) your Nelson is under MIT license which means that even if you delete it your projects etc and say not to make any more project with it Nelson it's a violation of the MIT license all projects on Scratch are under MIT license it's a bit like Mickey falling into the public domain so if you make projects on Melvore on Scratch and the music has been shared by its creator on Scratch it's considered to be under MIT etc.

Sources:

https://en.wikipedia.org/wiki/MIT_License