I don't know if that is a good idea or not. Isn't the idea of a master node is that they are on a server AND network expecting a fair amount of traffic? No server has a dynamic IP address, so by enabling it the only additional uses would be on a home computer on residential internet, which is not good for both the user (your ISP may not like it and shut you off/make you upgrade to business class internet, which would have a static IP, making this a moot point) as well as the network as a whole (my primary server has a 1 gigabit connection and great peering with everybody. my home internet has a 30 megabit connection with .75 megabit upload and shit peering.)