Following this guide https://www.thefoodranger.com/how-to-grow-your-youtube-channel/ I optimized videos at my YouTube channel.
But it looks like that the traffic not only increased but decreased after the optimization.
Does this likely mean that I over optimized? Is YouTube much liable to over optimization?
For example to my video about Antichrist, I added remotely related keywords like "666" or "six hundred sixty six". Are these not directly related keywords considered keyword spam by YouTube and punished?