I agree that having video editing options to remove muted audio would be helpful. I also would like to point out that putting a massive popup overlay over your video for everyone to see that dialog has been muted due to copyright issues is counter productive. Does the video creator need to know so they can fix either someone else's mistake or there own, absolutely. They should be promptly informed...however if you have automatically muted a section of their video, nothing that any potential viewer will see will be violating any copyright, so informing the potential viewer that there WAS and issue only gives a negative impression of the creator. As and example I was streaming a play though of a game, and in the background there was a sound effect of radio chatter and a siren and the video was flagged for it. I have no idea if the scan of the idea was something mistaken for another registered sound effect or it was 100% correct. The audio was from the game itself. Since i was just playing the game there is no way to know that particular sound effect was even in the game to filter it out, Its a sound effect. If your going to mute it then the issue should be resolved. A viewer isn't going to know the actual context nor have any idea there was anything copyright questioned its literally muted to the viewers. While it doesn't harm your video / channel standing as you point out on the back end it certainly has negative connotations to anyone looking at your thumbnail intro for your video. The only person who needs to know is the content creator.