Server Discussion Disable custom configs.

This should really be done, have a simple option for server owners to tick allow custom configs or not?
Why? Someone just needs to change a single snippet of code into this;

Code:

 
  "fireTime" : 0.01,
  "blockRadius" : 1000,
  "altBlockRadius" : 10000,

Guess what happens?
The server will instant die or start lagging to death, didn't think that many people would do it but seeing how ehhem "someone" decided it'd be a fantastic idea on write a guide on changing how fast and how big the radius you can mine and how easy it is all server's are going to be facing configs like this exploitation.

Solution is pretty easy in terms, check for modded configs and if found, disable client connection to server if owner requests. (Then again this can be easily bypassed so you'll need other ways aswell I'm guessing before Beta is done)