What is a guild in DDO supposed to be?
Before guild leveling, it was a group of players that got along well, had similar playtimes, and ran quests and raids together....
But now, with the ridiculous guild level system that has been implemented, it seems to be a group of players who are focused on maxing out their guild level, and kick good players out of their guild just because they've been inactive for a few weeks or months (knowing fully well that they will return eventually).
I have seen great guilds crumble and collapse because of the guild renown system. If the system had been implemented differently, that may not have been the case.
This is how I envision a good basic guild leveling system:
1: Guild renown awarded on completion of quests of parties that have at least 2 members from the same guild (acts like favor). This encourages guilds to run together, but does not force guild groups to deny pugs.
2: Maximum guild level/renown achieved by completing all content in game on maximum difficulty as a guild.
3: Due to 1 and 2, no guild renown decay. Or rather, renown decay is in the form of new addition of content.
4: Earn airships and airship amenities via current renown system. Play quests, pick up heroic deeds and whatnot (which are added to "Guild Funds", guild size bonus can be used here), and use the funds to purchase airships and amenities.
Also, modify the amenities so that they are aware of player levels, so that a level 1 can't just get maxed resists and whatnot.
That's just my opinion though. Some of you might have differing opinions...