The chance that a building will have no loot and no spawners [range: 0.0 ~ 1.0, default: 0.2]

S:buildingWithoutLootChance=0.2

The only option (by the looks of it) to disable spawners is this, but this also disables loot ;((
a guy said "no risk, no reward" to me, but in the end, isn't this the player's choice, to go with no spawners that is. (I could play in peacefull, but I still want to encounter mobs in caves, etc.)

If true then the buildings will be full of spawners [default: true]
B:generateSpawners=false

I'm so stupid