I recently listened to the new Chimaira song empire and i thought to my self that riff is kick ass but I've heard it before then i listened to Annihilator's Alice in hell. And my released that Chimaira stole tho hole riff even kept the pinch harmonic in the same spot...Were is todays metal going????
this is nothing new. even if they did do it on purpose, bands have done that for a very long time and will still do it.