Shadowbanning is when a platform limits a user's reach on their site, making their content invisible or less prominent. This can happen for many reasons, and often the user isn't notified of why it happened. It's a very frustrating situation for creators, and can lead to a significant decrease in engagement.
One of the biggest reasons a channel might be shadowbanned is for violating community guidelines. This can include things like using foul language, sharing copyrighted material without permission, or posting videos about topics that might cause controversy. These guidelines are enacted to protect users and make sure that everyone has an enjoyable experience on YouTube.
Another reason a video might be shadowbanned is for using 'unfair methods' to increase views and engagement. This includes using bots, cheating software, or any other prohibited methods. The best way to avoid getting shadowbanned is by growing your channel organically, and focusing on creating high-quality videos.
Finally, using inappropriate music in your video can also get you shadowbanned. This is because the music can be a clear indicator of what kind of content you are posting, and it may violate YouTube's community guidelines.
If you believe that you are being shadowbanned, there is a process for requesting that your account be unblocked. The first thing you should do is visit YouTube's support page and fill out a form that explains the problem. Be as detailed as possible, and attach screenshots of the issue. You should then receive a reply in due time from a member of the YouTube team.