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.
Fridge Horror: So, apparently everyone is matched according to genetic compatibility, rather than preference. This obviously means a person of the opposite sex. They have no choice in this, and it's permanent. What happens to homosexuals?