To all guilds here on Argo.
Don't keep anything valuable in your member-level chests OR invite to your guild only trusted persons.
We had a situation recently that we invited a guy who cleaned all our guild chestsso beware. Guy was smart, used translator to fool one of our officers to join our language oriented guild. Waited when noone was online and the next day it was over.
Not a big loss, dozen of low level tomes (skill and abilities), bunch of community loot (titan wands etc), ~2k bigby hands we used to train guild newbies (all from daily dices so no worries). But that feeling of being cheated and robbed, doh!