Humus is not just soil, it is a community of living things. Organic matter is a breeding ground for many types of microbes, including bacteria and fungi which break down plant material, and for other microorganisms that help plants roots absorb necessary nutrients.
I agree with your analysis, but I disagree that cagers refers to an entire class of persons, all motor vehicle drivers. To me, and maybe I am not using the right definition, a cager is an @sshole motor vehicle driver.
Haters. A term used by others, usually being suburban gangsters, whose lives are absolutely and undeniably defined by what others think. These people rumble often and think of themselves as original and/or indestructable. People that use the term haters are the lowest stage of the evolutionary scale. They bleed the fastest and have thought processes similar to that of a mentally underdeveloped cat.