In this kind of fanfic, perhaps Harry has finally had enough of the Dursleys' mistreatment. He might use his magic in a moment of rage. Maybe he starts by levitating Dudley to teach him a lesson after one too many taunts. Or he could use a spell to make Aunt Petunia's precious china smash, as a way of getting back at her for all the years of neglect and cruelty.
The main characters are Harry, who has reached his breaking point with the Dursleys. His pent - up anger and frustration towards them finally explodes into action. The Dursleys, on the other hand, are the recipients of Harry's wrath. Uncle Vernon, with his blustering and bullying ways, Aunt Petunia, who has always been cold and distant, and Dudley, the spoiled brat. There could also be appearances from characters like Dumbledore, who might show up to either reprimand Harry or offer some kind of guidance depending on the nature of the attacks.
In most ethical views, it's not. Harry was raised by the Dursleys, and while they were cruel to him, torture is an extreme form of revenge. In the world of fanfic, some might explore this idea for shock value or to show a 'dark' side of Harry. But from a moral standpoint in general, it goes against the principles of kindness and non - violence that are often promoted.
Probably not. The idea of Harry being beaten to death by the Dursleys is extremely dark and goes against the general spirit of the Harry Potter series. Most fans are more interested in positive, adventure - filled, or character - development - centered fanfics.
In the 'harry attacks lily fanfic', perhaps it's a scenario where the normal boundaries of the Harry Potter universe are broken. It could be due to a time - travel mishap where Harry's actions are out of place and he ends up attacking Lily. Or it could be a case of some evil entity controlling Harry to carry out this unthinkable act against his mother - like figure, Lily.
I'm not aware if it's a popular fanfic. There are so many fanfics out there, and this one with such a controversial premise might not be mainstream. It could be a niche creation that only a small group of fans who are interested in exploring extreme and unorthodox storylines might know about.
In this fanfic, the Dursleys may be depicted as being in over their heads. Vernon Dursley, for example, might be shown as constantly angry and trying to assert his authority in a situation where he has none. Petunia Dursley could be portrayed as being torn between her dislike for magic and her sense of family obligation towards Harry. Dudley might be shown as being bullied or affected in the Muggle world because of Harry's presence in their family.
In the fanfic, Snape might use his knowledge of the Dursleys' house layout. He may enter the house unnoticed, find Harry, and then use a Portkey to quickly get them both out of there. He could also have some sort of charm or potion that he uses to counter any magic the Dursleys might have used to keep Harry there, like a spell - breaking potion. And he may have planned the whole rescue very carefully, choosing a time when the Dursleys are least likely to notice, like in the middle of the night.
The abuse makes Harry more cautious. He has learned from the Dursleys that the world can be cruel, so he's careful about who he trusts. For example, he might be hesitant to open up to new people he meets at Hogwarts.
A rogue wizard who has his own ideas about Harry's future could take him. This wizard might think that he can better prepare Harry for the fight against Voldemort than Dumbledore or the Order of the Phoenix.