One idea could be that when Harry absorbs the cloak, he gains the ability to become truly invisible, not just to the eye but also to magical detection spells. This could lead to him sneaking into places like the Ministry of Magic undetected and uncovering secrets about Voldemort's past plans.
It might make his friends a bit wary at first. Since this is an unusual and powerful thing to happen, they could be concerned about how it's changing Harry. But as they see that Harry is still the same person deep down, they would gradually accept it.
I don't think it's common. In the Harry Potter fandom, we often discuss things like the latest fanfiction trends, which characters are popular in fanfiction, or how fanfiction fills in the gaps in the original story. Statements about Harry Potter 'absorbing' fanfiction are not typical. Most people see fanfiction as a separate, creative outlet for fans, not something that the main Harry Potter entity 'absorbs'.
I'm not sure if there's a particular well - known fanfiction with exactly this plot. There are so many fanfictions out there that it's hard to keep track. You might have to do some in - depth searching on fanfiction websites.
In some fanfictions, Harry Potter might absorb abilities through magical artifacts. For example, he could find a special amulet that transfers the powers of the previous owners to him when he touches it.
One common ability is enhanced magic. This could mean he can perform spells more powerfully or with greater ease. For example, he might be able to cast a Patronus without a wand or make a very complex spell work on the first try.
Well, it could be really wild. Harry might gain some super - mechanical powers. Maybe he could control machines around Hogwarts like the Sorting Hat could start flying around on its own and the moving staircases could go haywire. It would be a total chaos of magic and technology in the wizarding world.
It could mean that Harry Potter, as a character or the entire franchise, somehow takes in or incorporates elements from fan - written fictions about the books. Maybe it refers to how the official works might be influenced by the creativity shown in fanfiction.
It depends on how it's presented. If it's just a creative exploration within the fanfiction world and not promoting harmful or unethical behavior in real life, it can be seen as okay.
One consequence could be that his connection to Voldemort becomes even stronger. This might lead to him being able to sense Voldemort's actions and thoughts more clearly, but also make him more vulnerable to Voldemort's attacks on his mind. Since the Horcrux is a part of Voldemort's soul, it could also start to influence Harry's personality, making him more aggressive or moody at times.