Suggestions

it would be a good idea if at the end of the month it would actually say something like "The current voting period has ended" instead of what is currently displayed "Next voting period starts in 1 second. Check out top voters for the previous month." which you could understand why some find it confusing and it would also be great if people would get they're vouchers at the end of the voting .. See more

since an island can have multiple players in it, it would be better if the island had an /is vault
even if the storage for the vault is just 9 items/stacks. it would help a lot for skyblock gameplay :D