Game was crashing last night. Was watching my brother play a bit and when he got out of the dungeon he just finished, the game crashed. Logged back in and there was a queue to get back on the server, so as others said it was a mass DC. One of the people in one of his LS's got booted while crafting a multi stage craft and lost all of his items. Probably 12+ runs of WP/AK down the drain for him, assuming the items he lost involved Phil tome items.

Maintenance is a far better option than just letting things persist with the crashes.