Guild tax 100% ?

New player here. Really like the game, its kinda chill going around the blue and yellow zones farming materials and leveling my destiny board and periodically doing solo expeditions to get fame for my combat.

Recently got invited to a guild and upon doing a expedition, I killed all the enemies only to find that all the silver I picked up and the end reward silver was all taxed by the guild? I went to google how to check the percentage of the tax, low and behold this guild has 100% tax. Is this common?