The issue here is that the author here used the emulator code bases (from the Snes9x project and others) and tried to profit from them, which is probably agains

The issue here is that the author here used the emulator code bases (from the Snes9x project and others) and tried to profit from them, which is probably against the license of the underlying code. He didn't even release his source code, so he was in violation of the original license, but tried to profit from it anyways.