So as it stands right now my assumptions were correct: guild XP for quests has been reduced by 75%. Not sure really how I feel about the change in the short term, but in the long term I'm a little scared.
Right now we've had roughly 10 characters, of various levels questing. We've been hitting the caps, or gotten close even after the cap, and we do have a lot more people/characters to level, so that's not a problem. My major concern is, once everyone is 85, how much more experience will be needed, and how much will we be able to generate with JUST dailies and boss kills? Having people quest from 80-85, or even 1-85, isn't that big if a deal. We're all going to do it anyway. Having a good collection of people, in ANY sized guild, doing dailies consistently every, is going to be a bit rough.
So we're talking about a drastic decline in XP gain, as XP required increases ACROSS THE BOARD. Not sure ho this is going to be worked out. People have been saying "Smaller guilds don't deserve to be level 25 anyway", which...douchebaggery aside, isn't even relevant here. In order to keep leveling up the guild as consistent pace you'd need all the same people doing approx 25 dailies on 2 characters (assuming they did 50 quests a day while leveling, which I think is a fair guess), every day OR you have to constantly keep recruiting new players and having them level to 85 exponentially per guild level.
I trust Blizzard, and I'm confident we're going to get into the teens with ease, but I'm definitely worried about where we'll be month 6 of this expansion.
That side:
Disciples of the Mix is recruiting! (But I'd wait a week or 2 for the server load to die down )