#2 - March 14, 2013, 2:23 p.m.
First, we’d need to define “inactive” and “dead.” I believe that if the guild were to be totally disbanded, the name may become available for use by another guild. I am not sure about that, but such is my assumption. However, please keep in mind that general member inactivity would not result in automatic availability of the guild name because we do not have a policy that prompts us to disband a guild simply because the members become inactive.
I hear from people all the time who step away from Guild Wars (or even Guild Wars 2) and come back some months later. For that reason, we do not have a process for doing any sort of system purge that removes characters and/or guilds.