How are brackets decided (bug?)

[Nimhain]

Sirrian has written an post here related to guild war rankings:

Guild Wars and Rankings

Hi Everyone, Just dropping by to give you a daily update on some things we’ve been working on. Today I was actually going to work on issues related to one-troop defenses, but due to the way my scheduling has panned out, my day got broken up a bit, and it was more practical to switch to a task involving finishing off some guild wars ranking/bracketing issues to a point where we could deploy them for next week. TL;DR: We’ve got some new guild war bracket calculations going out next week, that s…