Don't you have access to /feed, like me? ;P Why would you need food?
It was more speaking in the eyes of a new player, none-ranked users do not have access to /feed and the like, unlike ranked users.
Hello QueasyCarBoy, Jails are in all honesty pointless ~ there would be no point for players to be able to join, but not do anything. Even with that, griefing is griefing ~ you'll be banned no-matter the size of the grief (Unless it's like a few items or low-worth blocks).