Your content is spam-like or contains inappropriate elements

[USY]

Hey,

Sometimes Members get the below message:

Your content can not be submitted. This is likely because your content is spam-like or contains inappropriate elements. Please change your content or try again later. If you still have problems, please contact an administrator.

I am just wondering in which case this message appears. And what could be the reasons.
Your content is spam-like or contains inappropriate elements

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