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.
The Woobie: Spinner. You just want to give him a big hug when Smoochy was accused of being a Nazi.
Writer Cop Out: The ending was WAY too happy for a dark comedy. Clearly someone wussed out.
Just because it's a dark comedy doesn't mean it can't wind up on the idealistic end of the scale. A major facet of the movie is Sheldon's steadfast refusal to be corrupted by the darkness surrounding him, and how it affects those around him.