This is straight up wrong. Mega cannot decrypt files and search for copyright files just like that. They need to have the key for that. I have shared a lot of copyrighted stuff on mega and the links are still available publicly but in closed forums( still active ). mega would've taken it down a long time back if they knew what was in it. They can only take down files when corpos notify them with the base links to the file. If they don't it stays up.