From W3C Wiki
A proxy topic is one that is basically the same content as an existing, signed web page.
Is this an PPR:AntiPattern?
Is this different from having two pages about the same thing?
Maybe it is like having a comments sheet attached to something? Except we don't (ahem) always remember to point from the web page to the relevant Wiki entry, which breaks that metaphor...
LionKimbro: If the content is almost exactly identical to another web page, and the ability for a local community to modify or annotate a page is not an issue, then yes- indeed- the redundancy is a problem. CW:ConsolidateInformation.
However, it usually happens that the information is not exactly the same.
Consider the page XML. There are plenty of excellent descriptions of XML on the Internet.