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.
YMMV: Kingdom Come
Anvilicious: The series is not exactly subtle in it's themes, metaphors and particularly religious symbolism.
Badass Decay: Poor Lobo, getting on in years, has gone from the Main Man to the Main Homer Simpson Lookalike.
Chaotic Neutral: The Creeper, of course. The Novelization even states that he switches sides a few times during the final battle before dying in the nuclear blast.
Magog ended up becoming this for the writers; they initially made him a cliched representation of everything they hated about Nineties Anti-Hero and the the culture he represented, but he gained unexpected depth through the writing of the series until he ended up being one of their favourite characters from it.
Hilarious in Hindsight: Deadman's appearance in this series: he is reduced to his skeleton in his uniform. Now take a look at what his Black Lantern self looks like...
"Who bagged Eclipso, huh? Who toasted Ra's Al Ghul? Guys like us, that's who! We saved lives, man!"
And they also note that the traditional heroes never had to deal with threats like Genosyde and the Murder Squad - if they had a better answer for those situations, the anti-heroes are all ears.
Strawman Has No Point: "One million dead. And they died because they wanted a superhero who would kill."
And how many died from supervillains who were left alive to go on and commit crimes again? There is no good answer to this.
Or, it's somewhere in the middle — the younger heroes started out with good intentions and good results, but then got carried away and had to be stopped. It's also possibly a case of just how the older generation produced villains that were on their level, the younger generation also produced villains on their level — who, like the younger heroes, were much more ruthless, vicious and destructive than the previous generation.
When Superman questions Wonder Woman about bringing a lethal weapon (a sword crafted by a diety) to quell a riot, she shoots back that not everyone has built-in deadly powers like heat vision or bullet-proof skin.
No matter how much the younger generation can justify that they perceived their actions were necessary due to how violent the villains became, it doesn't excuse the fact that, once they ran out of villains to fight, they began fighting each other out of sheer boredom with no regards to civilians caught in the crossfire.
Stronger With Age: Superman, who is not vulnerable to Kryptonite anymore.
Uncanny Valley: Averted, one of the main praises of the painted artwork is how realistic it is.