Our full Comments Policy can be viewed here, with a full listing of all our Terms, Disclaimer & Policies here. However, the simple one word "Respect" as shown below, gives you the basic concept.
If you are new to the Disqus commenting system, please see the guide here. You can download a copy from our Download Centre, along with other guides relating to our site. You can also get even more information from the Disqus Commenting Articles
If you are going to include images then please use a maximum width of 800 pixels and compress the image files. If you are not familiar with how to do this then use this link for Mac OS & this link for Windows PC's.