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: After War Gundam X
Complete Monster: Seidel Rasso, leader of the Space Revolutionary Army. In the aftermath of a war that nearly wiped out humanity, Rasso became the leader of the twelve million people living on the colony of Cloud 9. Turning it into a Police State, Rasso suppressed all dissent, and preached a Master Race philosophy, founded on the notion that since Newtypes could only be born in space, the colonists, rather than the people of Earth, should control the destiny of the human race. Knowing this to be false, Rasso also kept all information about Newtypes on Earth quiet, while gearing up for another war. Destroying the rebellious colony of Satelicon, including its largely civilian population, with photon torpedoes in order to consolidate his power, Rasso had his right-hand man, Nichola, arrested and summarily executed for suggesting peace talks with the New Earth Federation, and tried to use a Kill Sat to exterminate those humans remaining on Earth. When the supercomputer DOME revealed that Newtypes were really no different from the rest of humanity, Rasso refused to accept it, even as his archenemy (and ardent Newtype hater) Fixx Bloodman of the NEF reconsidered his own position. Pushing his own lies to the end, Rasso's last act was to violate a ceasefire between himself and Bloodman, ranting about how Oldtypes like the NEF president were all scum who deserved to die.
Harsher in Hindsight: A meta-textual example. When the show first came out, the whole concept of "drone mobile suit weapons controlled by one person to cause mass destruction" seemed a little out there, and perhaps contributed to some of the trouble Japanese fans had suspending their disbelief. Come The New Tens, and all of a sudden the aforementioned seems creepily prescient more than anything, and gives the whole show a lot more teeth in its messages.
Hilarious in Hindsight: Garrod using the Satellite Cannon can be as such, if you take into account his Japanese voice actor is the defacto voice actor for Daffy Duck in Japan, except Daffy is always at the receiving end of the attack, rather being the one doing the attack this time.
Moe: Tifa Adil. Notable in that she had a lot of these traits before the term was really codified, and may have contributed to codifying it, alongside a few ofher contemporaries.
The Scrappy: Olba Frost, the younger Frost, is ferociously bashed by fandom for supposedly being a male Yandere with a brother complex. Even his voice actor hates him - apparently, the role even gave him logomisia toward the phrase "Nii-san.".
Vindicated by History: To some extent. While it still hasn't gotten an HD remaster, it has gotten a number of "posthumous" high-quality Gunpla model kits that have all done quite well, its followup manga did quite well for itself, and in general the show is well-regarded on both sides of the Pacific by critics and fans at this point.
In particular, it's become a popular mainstay of Super Robot Wars; its appearance in Alpha Gaiden helped spur re-examination of the show, and the massive involvement of the show and characters in Super Robot Wars Z (straight down to getting the actors to come back into the studio to record an irrelgular number of new lines) has been largely due to fan demand.
Unfortunate Implications: Ennil El's entire first arc is based around her wanting to kill Garrod because he refused to sleep with her after she broke into his room in the middle of the night. This is treated as something the audience should sympathise with, which is deeply awkward and uncomfortable for some, and conveys Double Standards towards both men ("you are NOT allowed to say no to a girl who wants to sleep with you, or she'll go nuts on you or others") and women ("if a guy refuses your offer to sleep with him, then the 'logical' reaction is to go crazy on him and others"). Ennil is genuinely screwed up foralreadypresentreasons, but still.