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.
They Changed It, Now It Sucks: A new breeding script was introduced that caused the pups to vary in color instead of always being the exact medium of the parents, people complained, so they added a new item that used the old breeding script.