What's level-scaled in Borderlands: The Pre-Sequel?

What’s level-scaled in the game?

I’ve got LV6 Kraggon Pebbles in Serenity’s Waste and entered it as a LV5 Doppelganger.

The loot inside the chest of the quest Oz Kit location was, on two different occasions, LV5 Grenade Mods (Green, White, White), and 3 LV5 White Oz Kits.

Also, enemies and rocks seem to be dropping moonstones at an elevated rate. I found a 4 Moonstone chunk inside a rock, and a Kraggon Pebble dropped one too.