What about a system where A player makes him own renown and keeps it wherever she/he goes? I earn 5,800,000 and I leave a guild I take that renown with me and join a new guild and that guild gets my renown as long as I stay. Keep the guild decay syatem If i join a guild with a lot of members and its high level My renown decays faster than if I was in a smaller guild.
Next time you run shroud go back and look in chests when people leave I am seeing a ton of guild renown left in chests from all different guilds. I don't know or understand why people are not grabing renown for their guilds but ya... this would fix that problem if you know that you are only hurting yourself people will grab the renown.