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.
Nightmare Fuel: Rojer's Mrdinis are killed when a general demands that he teleport bombs onto a Hiver world, enough ordnance to wipe out everything on the planet. Horrified, Rojer refuses, only for the general to attempt to kill him. His Mrdinis take the hits- and are crushed.
Unfortunate Implications: An openly gay man is finally introduced to the series and in the very next book we see him in, he's banging his female best friend.