body: Private WoW servers use a novel core, but need to be populated with maps, DBC files, and other content in order to actually have anything aside from an empty "world." Blizzard so far has refused to offer legacy servers themselves, but has gone after private servers.
  
  
  One of the arguments that people use in support of Activision/Blizzard, in regard to them refusing to releasing IP for use in constructing legacy servers, under a free to use license, is that doing so would reduce their claim on the IP. Is this true, and if so, why?
  
  
  
title: Would Blizzard releasing intellectual property under a free to use license reduce their claim to the IP?