I won't discuss weekend WoE, that's reserved for hackers of all kind.
However, guilds can get collab points in weekday WoE, up to 5 times a week, or 3 if you don't spend Ruby. Also, just like Guild Abyss, it's an opportunity to play in a safe environment, you know... for fun, as it's supposed to be.
So, any strategies to clear the castle, loots from weapon/armor boxes would be nice.
Have fun! (?)