Videos cannot be scripted in any way.
Videos must have some sort of interesting content... Just because the video you posted of you walking in circles for half an hour didn't have a script does not mean you should post it here.
All videos should be of real life- gaming videos are banned.
No self-promotion: posting ten episodes of your personal "unscripted" YouTube show, etc. is banned.
Don't be an asshole.
Here is an example of a good video for this subreddit. It isn't scripted, and it has interesting/funny content.
Here is an example of something you should not post. It has no interesting content, despite being "unscripted".
If you have questions about a post- why it has or hasn't been removed, or anything else- feel free to message me!