Youtube's new monetization policy change - demonetizes "advertiser un-friendly" videos

Content that is considered inappropriate for advertising

Content that is considered "not advertiser-friendly" includes, but is not limited to:

1. Sexually suggestive content, including partial nudity and sexual humor
2. Violence, including display of serious injury and events related to violent extremism
3. Inappropriate language, including harassment, profanity and vulgar language
4. Promotion of drugs and regulated substances, including selling, use and abuse of such items
5. Controversial or sensitive subjects and events, including subjects related to war, political conflicts, natural disasters and tragedies, even if graphic imagery is not shown

If any of the above describes any portion of your video, then the video may not be approved for monetization. If monetization is approved, your video may not be eligible for all available ad formats. YouTube reserves the right to not monetize a video, as well as suspend monetization features on channels that repeatedly submit videos violating our policies.

https://support.google.com/youtube/answer/6162278?vid=0-920040517880-1480833784726

According to YouTube, the company started rolling out improved notifications in Video Manager in an effort to make it fairer and clarify confusion in the creator community around its longstanding advertiser-friendly guidelines. The improved notifications are aimed at making it clearer to creators when a video is demonetized due to advertiser-friendly content concerns and making it easy for them to appeal.