There can be several reasons why Netflix may remove some episodes or complete series from their platform. One of the most common reasons is that the licensing agreement with the content creators has expired and Netflix hasn't renewed it. This means that Netflix no longer has the rights to stream those particular episodes or series.
Another reason could be that the content is flagged by the company's content moderators due to either legal or ethical issues. This could be related to copyright infringement, explicit content, or any other content that is sensitive in nature. In such cases, the episodes or series would be removed as per Netflix's guidelines.
Additionally, Netflix may remove episodes or series if they consistently receive negative feedback from viewers or as part of routine content rotation. Netflix strives to offer fresh and engaging content to its subscribers and removing certain episodes or series could help them achieve that.
It is worth noting that Netflix typically announces the removal of content before it actually happens, so subscribers are notified in advance if their favorite episodes or series are being discontinued.