Potential pitfalls to avoid: recommending third-party sites for downloads (could be pirated), not respecting copyright laws. Emphasize using the app's intended features or services they subscribe to.
Additionally, include tips on optimizing MP4 files for quality and size, maybe using video converters if needed. But keep it general unless specific tools are legal and recommended.
Wait, the user might not be clear on the legal aspects. So clarifying that any download should be done within the terms of service of the app is important. Maybe even suggest purchasing a subscription if they want access to download all content.
Need to start drafting the blog with these elements in mind, ensuring compliance with laws and ethical guidelines while providing useful information.