Hello there, I think i would be a great idea with /rankup system. So you could get better kits without donating and spending money, i know that server need support and stuff, but when someone gets lots of diamond blocks and you sitting here with stone sword and few torches each 10 mins... Like the last rank could have /fly or smth like that. So there would be a point in creating a shop or selling ur stuff to spawn.
Only applicable to prison where people eventually get to free...can't be if not possible to skyblock. Donate to get /fly and so on...you can still make chest shops.