There are subjectives, and then there are these. While you may believe a work fits here, and you might be right, people tend to have rather vocal, differing opinions about this subject. Please keep these off of the work's page.
No contesting entries. This is subjective, the entry is their opinion.
No natter. As above, anything contesting an entry will be cut, and anything that's just contributing more can be made its own entry.
Do not remove an entry from the page nor create a Justifying Edit to defend a moment - it's an opinion. Caveat: A Moment may be removed if it is blatantly untrue or otherwise breaks the rules. However, if you do remove an entry, move it to discussion and explain what is wrong (blatantly untrue, multiple entries for the same work, unsigned, etc). Even if the rules were broken, people should know what they did wrong.
No ALLCAPS, no bold, and no italics unless it's the title of a work. We are not yelling the DMoSs out loud.
Baronobeefdip: In Fullmetal Alchemist, Greed's 2nd death in the manga. It just felt like nothing more than a major Ass Pull, especially since Greed had just gotten a major dose of Character Development in the previous chapter when he stated he wanted friends above anything else. Oh, and just to rub salt in the proverbial wounds, they let Pride live...but use the flimsy excuse of "Amnesia". Why couldn't Arakawa just pull a Scanners and make it ambiguous as to whether or not Greed was still inside Ling at the end instead of killing him off?
Styx D: The show's worst moment for me was, often considered a Crowning Moment Of Awesome, Alphonse sacrificing himself to restore Ed's arm and the subsequent fight with Father. To me it looked like a huge contrivance for the sake of drama and allowing the protagonist to land the final blow on the Big Bad. Father in his shambling, deprived of Philosopher's Stone state was no danger to anyone. There were more then enough strong characters standing around to take him down, even without getting close to him, like Roy or May, who instead seemed to be content just cheering for Ed. Hell, even a regular soldier would do, as proven by the fact that Father didn't manage to retaliate against Ed's blows even once. But no, we had to have forced dramatic tension and then a boring Curb-Stomp Battle. Fortunately, this didn't manage to ruin the great series for me, because it ended soon after that.
Fluffything: The fact that Scar's real name was never revealed is a huge DMOS for me. Not only was this one of the biggest mysteries of the series, and one that the fandom in large wanted to know the answer to since, well, since Scar first appeared. But, Hiromu Awakawa herself said that she would reveal Scar's real name at the end of the manga. Guess what? She didn't!? His real name isn't revealed in the actual manga, it's not revealed in any footnotes, it's not even revealed in any side material. If that's not a slap in the face to the fandom, I don't know what is.
Anime King 1108: The 2003 anime, while a great series on its own merit, has one aspect that grinds my gears: Fuhrer Bradley's defeat. While he actually put up a decent fight, he pretty much dies from his own Bond Villain Stupidity by giving Selim the key to the safe holding his skull. 1. Why did he think keeping his own weakness in his house was a good idea? 2. Why did he think giving Selim the key to it without explaining why its contents are important was a good idea? I get that he's supposed to be the Sin of Pride, but even Proud people know when they're basically causing their own deaths.
Shrimps: I didn't care much for the anime version of FMA, but it hit a new low with the scene when Roy shot Winry's parents and becomes all suicidal because of apparently immense guilt from killing two people. Wait, hasn't he and his army killed a couple if hundreds already? Sure, this time it was his own kin but that just makes it worse.
CJ Croen 1393: The "4Koma Theater" series is usually hilarious and adorable, but one of the later installments left me just sitting there shaking my head; their spoof on Hoenheim's death. Basically, Pinako sees Hoenheim dead at Trisha's grave...then tells him quietly that it's not Trisha's grave. Yep, that's the punchline. Way to ruin the saddest, most heartwarming death in the series!