We are running a Magiculture 2 - 0.6.0.5 server.
Minecraft version 1.12.2.
Bountiful-2.2.0.jar

Magiculture has focused Bountiful on food rewards but we saw on Vallon's "Bit by Bit" that it could be set up for killing monsters. Looking at your wiki, it seemed pretty straightforward but when i set it up as follows

  {
  "content": "minecraft:Skeleton",
  "amount": {
    "min": 1,
    "max": 3
  },
  "unitWorth": 800,
  "weight": 150
},
  {
  "content": "thaumcraft:wisp",
  "amount": {
    "min": 1,
    "max": 3
  },
  "unitWorth": 800,
  "weight": 150
},

and do a /bo reload- it says (in red)

Invalid bounty: minecraft:skeleton. Reverting to original data.
Invalid bounty: thaumcraft:wisp. Reverting to original data.

Am I not on a version that supports this feature?
Or is the syntax different for monster kill quests?

Thanks!

It needs to be entity:minecraft:skeleton, as stated in the wiki.

I modified the page to make it a little bit easier to understand.

I hope that helps!

Very helpful. Don't know how I missed it!

Thank you!