What is Cheetah?

Cheetah is an informative robot that might comment on your post. If she does, she will claim that she found similar content somewhere else on the web. This is because you likely copy&pasted some form of content -- whether it be your own or not.

The interpretation of the comment is up to the voter who reads your post: the comment, in general, means that the voter will likely desire an understanding of the source of the content that you posted.