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.
Also a tearjerker is that Mako died midway through the show. What do the creators of the show do? Not only to they devote an episode to his memory, but they name a main character after him in the sequel series.