For some reason I really find the entire system a bit flawed. Extremely high potential, but really not working as of its current state.

My guild which is entirely based on questing gains exactly the same amount of XP as a guild that actually does guild activities together. The problem both lies in that we reach the daily cap is no time and that the rewards for doing quests are too high.

And it doesn't really make much sense either why soloing should give guild xp.

It feels like that a guilds level is more a image of when the guild was created rather than an image of how awesome the guild is.

How about making it so that some levels need specific achievements in order to become obtainable?