I was having a ponder on guilds earlier today and had come to the conclusion that as it stands guilds are great but there really is no incentive to make guilds exclusive. It would be pretty cool if with every new guild member the bonus you got from every geoside would be reduced BUT all members can work the guild (as a whole) bonus's up by sacrificing. The leaders/founder of guilds can see who is pulling their weight. Along with the dragon growing with sacrifices this would really add another dynamic to the game rather then the traditional hunt/gather. Or possibly to create an incentive for the reining guilds to put potions/valts ect on the bazaar and a % of the selling price is put into a guild treasury which could be used to buy additional guild upgrades which would increase geosid protection/guild bonus's ect. Just some ideas and I understand this is an aspect Karl and such probably are not thinking about right now but worth throwing out there.
Peace
Willy