I didn’t know if I should put this in suggestions or bug reports. Since this isn’t intentional, I’ve put this in bug reports. If a mod decides this belongs in suggestions, feel free to recategorize it.
Some people are creating guilds for themselves for the sole purpose of storing crowns. This is a guild of a person I found on my server.
One way this could be fixed is if the amount of crowns that a bank can store is increased linearly when players joined the guild. For example, a guild could store 2000x + 4000 crowns (x = the number of players in the guild).
There is probably a better way of solving the issue, but I haven’t thought of anything yet.