[1MoreThing]

These rules were created specifically because so many people were profiting off the ad revenue of music in videos. There's not a simple way to determine if the audio just happens to be in the background or if the content producer is benefiting from the inclusion of music they don't have rights to.

[gowld]

It's trivial: demonetize the video, or extract the standard license fee from the ad revenue. YouTube already knows how to do this.