Angry people gonna angry. Don't take criticism from people you wouldn't take advice from.

People will generally get angry no matter what you do. People are also angry it is MIT licensed.

But honestly I wanted to learn the Rust programming language and I thought writing an emulator was a good a project to learn as any.

I have been working on a emulator in C++ in collaboration with a friend, it is also cycle-accurate. It is called XTCE-Blue.