Not that it's particularly easy to find - but in the footer is a [legal][1] link.

> A Note from the Team
> =====================  
>
> ... Spam, personal attacks, and abusive language do not have a place on the Stack Exchange Network. If you ever stumble across anything on the Stack Exchange Network that looks like it violates our policies, please be sure to let us know.


  [1]: https://serverfault.com/legal/terms-of-service