ON THIS WIKI
Creeper Collateral exposes the rate at which explosions drop block items in a config file. In Vanilla Minecraft the rate is 0.3 (which means that there is a 30% chance that a block that has been blown up by a creeper pops to the ground, and is recoverable). This mod sets the default to 1.0 so no block is ever completely destroyed by a creeper. This does not nerf player' explosion damage in any way.
The config file is located in
Vanilla creeper explosion: http://i.imgur.com/Yc86fHB.png
Creeper Collateral explosion: http://i.imgur.com/WGo5ucF.png