Sure hope this a joke, a little jest to spook folks for October. Otherwise you're going to cause chaos and ruin in the community in just a single month. The community is already dying, to do this could prove fatal, whether its a small trial or not.
Mods have proven to be the most effective method of weeding out rule breakers, its why so many online games have them. Even adults need supervision, I can tell you from my experiences in Final Fantasy XIV, no community is a picture perfect, where everyone is happy-go-lucky holdin' hands and singin' kumbaya. I may not know how the inner workings of this system functions, but it can be very easily abused, regardless of how you try to prevent it. Just because someone is blocked does not mean they deserve a ban.