These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Plague Year Series
Inferred Holocaust: Completely averted with regards to the Earth's ecosystem. The author goes to great pains to describe what the realistic consequences of nearly all warm-blooded animals being wiped out would be.