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.
Alternate Character Interpretation: Was Tiber Septim/Talos a mighty and noble hero, or was he a bloodthirsty, ambitious, power hungry Jerk Ass who took advantage of a na´ve young Dark Elf princess, impregnated her, and then forced a brutal surgery upon her to kill the unborn child (because he believed a child with an Elven woman would be a threat to his sons), leaving her in physical and psychological agony?
Anti-Climax Boss: For someone who is feared by anyone, who knows at least what necromancy is, Mannimarco in Oblivion goes down very fast.
Badass Decay: Mannimarco in Daggerfall looked like a lich from the darkest corners of Hell's castle. Mannimarco in Oblivion looks like a High Elf in a robe. Both Played Straight and Averted because the Warp in the West resulted in more than one Mannimarco, one being the Oblivion version and another ascending to become a god (the Necromancer's Moon).
Some have also assumed that Mannimarco in Oblivion is actually someone else and not the Daggerfall one. Or potentially a possessed mortal vessel.
Broken Base: Bethesda has a policy of building every new game from the ground up. As such, the gameplay and tone of each installment of this series is radically different. Some postulate that there is not really such a thing as an Elder Scrolls fan—just fans of one particular ES game or another.
Fans are also divided on how official the obscure texts should be treated.
The fans even manages to disagree about which game is the most Broken Base-causing.
Critical Dissonance: Despite each game in the series receiving more praise by critics than the last, the exact opposite could said for it's fanbase.
Complaining about People Not Liking the Show: Will happen if you say anything negative about any of the games. The Fan Dumb for Morrowind, Daggerfall and Oblivion can be EXTREMELY touchy, especially if you compare (read: pan/denigrate) their pet release with a different one in the series. Even if you're being constructive, you'll be skinned alive.
It's Popular, Now It Sucks: This seems to have happened within The Elder Scrolls fanbase with the release of Oblivion. Hell, it goes back further than that. Prior to Oblivion coming out, it was Morrowind that was the symbol of all the bad trends in the industry. And mostly for the same alleged reason: "dumbing down" for console players. It is now considered the last good Elder Scrolls game by the same crowd. The same thing happened with Skyrim.
Misblamed: Oblivion is sometimes blamed for changing a bizarre Tamriel into a Medieval European Fantasy. Much of these complaints stem from the fact that previous descriptions of the elven provinces, as well as Cyrodiil, had quite a few un-European traits. While those complaints may be justified, some seem to think that all of Tamriel lacked traits from Medieval European Fantasy - anyone who played Daggerfall would know that this is not the case, but many people at the time of Morrowind's heyday didn't, leading to the assumption that there was not supposed to be any medieval elements in the setting at all. People have cited the fact that the game has horses in it as a reason for the series being ruined, despite the fact that they were in Daggerfall.
For Daggerfall players, this honor goes to the guards' "Halt!" You see, when you commit a crime, the game will start spawning guards constantly, all of them who constantly yell halt, which results in a chorus of "halts!" If you linger around the area where you are wanted long enough, the game may spawn so many guards that it may freeze or crash in a chorus of "Halts".
Player Punch: The Dark Brotherhood quest line in Oblivion has a very nasty example.
The Scrappy: "BY AZURA BY AZURA BY AZURA!". To be fair, he was meant to be annoying.
Back in Morrowind, there's Fargoth, and its expansion pack introduces Gaenor, who's part Scrappy, part That One Boss.
Seinfeld Is Unfunny: Daggerfall and Arena are a lot harder to pick up and play. One can pick up Morrowind and play it due to its still intuitive control-scheme but some of its glitches and poor design choices can make it a bit harder to than Oblivion. Oblivion itself now looks a little dated compared to Fallout 3 and Fallout: New Vegas
Daggerfall and Arena definitely have it worst. Most gamers still remember Oblivion and Morrowind, but the first two games are practically invisible now.
Special Effects Failure: The "magic item glow" in Morrowind is generally known to suffer from this, specifically that the glow makes the items look like they're covered in saran wrap. There are almost as many mods to replace/remove said graphics as there are mods improving the popular alchemy system.
Oblivion's lava is more accurately described as very painful tomato soup.
"Stop Having Fun" Guys: Try saying you played a pre-made class. Count how many people jump on you and call you a noob, insult your intelligence, or for being "lazy".
For that matter, it's best to not mention the lore if you do not want your neck broken in a painful way.
One player, new to the series, found out that, despite all the complaints about getting rid of classes in Skyrim, nobody mentioned the pre-made classes. As soon as he asked about them, he was immediately attacked and mocked, being called a "console-fag".
Uncanny Valley: Oblivion has two features that were meant to improve immersion, automatic lip-syncing and facial expressions reflecting the NPCs' disposition towards the player. The former is rather wonky, while the latter is on all the time, even when the NPC speaks. Most NPCs' disposition goes up pretty quickly, so the result is a rather disquieting image of somebody laboriously trying to speak through a stiff, creepy grin.
The Argonians and Khajit in Morrowind seem to walk like they broke their ankles.
Morrowind itself has some Uncanny Valley mostly attributed to the aging of the game. Oh, let's just say it: everyone in Morrowind walks like they have a stick in their ass.
What Do You Mean, It's Not Symbolic?: The 36 Lessons of Vivec from Morrowind. They are a series of 36 books, supposedly penned by the man-god himself, which are written by Michael Kirkbride. In them, he uses oodles of biblical imagery to make sure that, if you take it seriously, there is no way a person could see Vivec as anything less than the absolute god of The Elder Scrolls universe (which, of course, isn't necessarily true). Doubles with Anvilicious. Also with Tropes Are Not Bad. And don't forget Getting Crap Past the Radar since some lessons are loaded with obvious innuendo. Finally, there's a dose of In-Joke too, with glitches in the Redguard engine fictionalized as natural wonders.
Base Breaker: Anna´g, a struggling heroine wannabe who tragically struggles against the shattering of her romantic delusions, or a meaningless empty shell designed solely to show us Umbriel while Glim, Attrebus, Sul and Colin all get real work done.
And on a series-wide level, the destruction of Morrowind. Considering that it was destroyed years ago with a keystroke from Kirkbride in Morrowind the game...
Complete Monster: Vuhon. Like with Dagoth Ur in Morrowind, you can see how he became it, and even empathize with it, but that doesn't change the fact that he is willing to murder the entire population of the Imperial City and Lilmoth simply because he is too selfish to go with the viable alternatives Attrebus brings forward.
Ho Yay: In one scene Slyr mentions that "nobody is watching" and Annaig blushes. To which Slyr replies "don't flatter yourself."
I Knew It: Yup, Lord Vivec is gone and the Ministry of Truth crashes into Vivec City at a thousands of miles per hour velocity.
Mis-blamed: People think that Keyes destroyed Vvardenfell in this book. In fact, it was Michael Kirkbride, who had been with the series since the nineties, who made the decision and heavily foreshadowed it in Morrowind.
Wangst: Subverted. Attebus starts to, but Sul injects some cold hard reason into the situation to set him straight by quite reasonably telling him that there are more important (and far more painful) things than his realizing he isn't as badass as he think he is, and that dwelling on it when the world is in danger is both selfish and stupid.