Biggest threat to guilds

New releases. Whether it be something as big as expansions or something small as patches.

Something about the milestone, mile marker, what have you, of a release that makes players examine where they are and where they want to be.

Our guild lost some players and I have a sinking feeling risks being disbanded like this blogger's guild Saga.

Instead of being excited about the new instances, I find myself enveloped in a state of unrest.