I turned on ruins with the following two settings:

Allow the generation of ruins in the map

Ruins:
Enabled: true
Chance: 3

If enabled only worlds listed will be affected

Worlds:
Enabled: true
Allowed:

• 'floaty'

This still causes ruins to appear on the other worlds.. luckily the user that found them was excited enough to say so on chat lol.

This has been the same for:

Mobs drop the all the equipment they're wearing

If false will on drop only special items

DropFix:
Equipment: true

Only happens to armored mobs and skeletons, both will always drop a bow/armor in every world.

Alright. Thanks for reporting, I'm fixing it now.

Fixed.