You should not be able to input a http false websites even if the actual url backing it is a d2jsp one. This can mislead people to think if they enter this same http code in their browser it will go to the same website.

Example: http://www.lulzsec.com/

This could lead people to believe I own the domain and / or redirecting.
Not sure if there is an ez fix for blacklisting http www com.

If you hover your cursor over the link it will tell you the address. Also naming outside links isn't possible anymore.

I realize that the true url can be identified, and also that outside links cannot be masked as anything other than their url.
But I still feel it something that should be blacklisted if possible, so as to not mislead anyone.

As Mastrok said, hover you cursor and it will tell you the address and if you find an outside link, report it.