How about we just start out with "Don't be a jerk."
* I agree not to use this site to cause harm to me or others.
* I agree not to use this site in a way that it was not intended to be used (unless it's for good and very clever)
* I agree not to make it hard or unpleasant for others to use the site.
By using this software I recognise that farkwar.com is not a safety device and should not be relied upon as such. I will not hold the author responsible for any damages (real or imagined) that may occur from use, misuse, or non-use of farkwar.com. And all the other stuff that should go without saying.
Also, my wife would like to point out that it crashes every time she looks at it (though it has excellent uptime when she's doing something else.) YMMV