a similar deal happened with Megasphere BUT that was because he "claimed" his music was not being used properly when majority of times they were (overreating). This is different. Technically, all "Radzion" had to do was put "by Demonicity" or " - Demoncity" instead of "(feat. Demoncity) and he would more than likely be fine, but he didn't. DubstepGutter does this much better than this rando on the internet.
Irishtoner
Is he's Spamming?
Demonicity
no he stole my song and started making revenue with it