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: Fable I
Angst? What Angst?: The lack of sympathy shown to the Player Character: Maze teleports him out of Oakvale, away from the destruction of everything he's ever known. When the boy vomits on the ground, Maze just says he thought he would have a stronger stomach and there is nothing to return to. In the morning, Whisper says he was talking in his sleep and must have had a nightmare, and she and the Guild Master chide him for not getting up earlier. The hero can't say "I'm sorry, I'm a small child who just saw my family, friends and neighbours slaughtered and my hometown destroyed", but no-one seems to give him any thought for it.
Complete Monster: Jack of Blades. He leads a gang of bandits to wipe out your home village and kill your father, blinds your sister, who would later become a recurring character in the series, and in the end, murders your mother before the final battle. A mystical being from the underworld, he has no redeeming qualities whatsoever and acts in the most cruel and manipulative way possible.
Evil Is Cool: Jack of Blades is probably one of the most popular characters in the series.
Using the Hero Save in certain situations will make the game way too easy. The makers seem to have realized this, and your game will crash if Hero Save is used too many times in the PC version, and is removed entirely in Anniversary.
Also, it is very easy to acquire massive experience early on in The Lost Chapters by combining the combat mutiplier with the Ages of Skill/Will/Strength potions.
The shopkeepers in Fable and TLC have a dynamic pricing mechanism: for each item, there is a number that they prefer to have in stock, and they will set the buy and sell prices up when they are short and down with they have excess. Unfortunately for them, they only update the price after each full transaction ... so if you buy out the entire stock of an item at fire-sale prices, you can then immediately sell your entire inventory of the same item to the same shopkeeper at deep-shortage prices. With sufficient seed money, especially with high-ticket items like perfume, you can earn tens of thousands of gold pieces in minutes by this method without even changing shops.
Hype Backlash: The development team had promised several features that weren't in the game upon its release — tanned/bleached skin, the ability to plant an acorn and for it to grow into a tree — and people didn't take to the lack of these features. The sequel didn't receive as much ridiculous backlash mainly because the devs learned their lesson from the first game and didn't promise everyone the moon this time (except for the whole dog gameplay mechanic, anyway.)
Magnificent Bastard: Jack of Blades. Hideously, extravagantly evil, yet cunning and manipulative at once.
Stock Footage Failure: The Guild Master will let you know when your heath or will energy is low even when Jack Of Blades is burning down the Guild, and The Guild Master himself is lying wounded and barely able to speak.
It gets worse: in the expansion, he can keep informing you of the blazingly obvious when he is dead.
Stop Helping Me!: The Guild Master. "Try to get your combat multiplier even higher!" "Your health is low. Do you have any potions? Or food?" "Check the guild for more quests."
Parodied in one scene in The Lost Chapters where Jack of Blades starts mocking these things. "Hero, there is an important quest card waiting for you at the bottom of a slime pit!"
Your Combat multiplier is atrocious!
Apparently not just limited to players. In Fable II, some of the loading screens mention a rumor that the Guild Master was eventually found dead with the words "Your health is low" carved into his forehead.
His reputation continues to this day, such that Anniversary's option screen includes the chance to switch him off.
Taken to the extreme near the end of the game. He'll let you know when your health or will is low even when Jack Of Blades is burning down the Guild and The Guild Master is LYING ON THE GROUND WOUNDED.