Adjusted for XP....means what?

[Ukase]

As we all know, some changes took place in AE. I read/see/hear of new farms that are updated as "adjusted for XP". 

So, trying to sort it out myself, I go to create a custom npc. 

Is this what folks are referring to? 

 

I'm not an AE mission creator, not really. I've put together tiny little ones for badge purposes, but really had no idea what I was doing. 

I can only assume that some farm maps have this slider lower, to make the farm easier. And other folks have it higher by using the Custom or Extreme setting. 
 

 

Is that the case, or does it mean something different? 

[Bionic_Flea]

Yes.  Some of the older custom critters used to be 100%, but the formula was changed and now you need more attacks/powers to get to 100% XP.