Harry would likely be a bit bemused. He has seen so many strange things in his life, but this might still catch him off guard. Ron, being more hot - tempered and set in his ways regarding his friends and enemies, would be outraged. He would probably rant about how it makes no sense and how Draco doesn't deserve Hermione in any way. However, if they were to look deeper into the fanfiction world, they might realize that it's a creative outlet for fans. Fans can take existing characters and create new stories that don't have to follow the original plot. It's a way for people to express their creativity and their different views on the characters, even if it goes against what Ron and Harry think is 'right' for their friends.
Well, Harry might initially be confused. He'd wonder why people would pair Hermione with Draco. Ron, on the other hand, would be quite vocal about his disgust. He might even get angry at the thought of such a pairing. But Harry, after some thought, could see that in a fictional world, it allows for exploring different relationships and character dynamics that are not possible in the real story. He might not like it, but he could understand the concept of fanfiction a bit better.
She might be quite surprised at first. Fanfiction often takes the relationships of the characters in unexpected directions. Molly is a rather traditional character, so she could be a bit taken aback by some of the more creative interpretations in the fanfiction about Ron and Hermione.
Harry would probably be curious about it in a way. He might secretly read some of it to understand why people are so interested in this pairing. Ron, on the contrary, would actively try to stop people from talking about it. He'd say it's disrespectful to Hermione and their friendship. He might even try to get Hermione to tell people to stop writing such fanfictions, but Hermione would likely be more understanding of the concept of fanfiction and not be as bothered as Ron.
In some fanfictions, Snape might be secretly sympathetic. He may see the scars as a reminder of all Harry has been through, which could soften his usually harsh attitude towards Harry, at least for a moment.
Ron's reaction could be quite mixed. On one hand, he loves his friends and would want to support them. But on the other hand, he has had romantic feelings for Hermione for a long time. He might be jealous and angry at first. However, as the story progresses, he might realize that their friendship is more important and start to help them in any way he can, like protecting them from the rumors that might spread in the wizarding community.
Harry would be completely shocked. He has always trusted Hermione and to see her on Voldemort's side would make him question everything. He might initially try to reason with her, thinking it's some kind of mistake or that she's under a spell.
The reaction would be extremely negative. The 'Harry Potter' universe has a strong sense of family and friendship. Hermione is an important part of Ron's friend group, and Ron's dad is like a parental figure in their world. A fanfiction with this inappropriate plot would not only be against the essence of the story but also against the moral and ethical values that the series promotes. Fans would likely shun any such work.
Harry's reaction would be complex. He has so many emotions tied up with Snape already - dislike, confusion, and a bit of grudging respect in some ways. Discovering he's his father would bring all those emotions to the surface and more. He might go through a period of denial, not wanting to believe it at first. Then, as the truth sank in, he'd have to come to terms with a new family member. He might also feel a sense of betrayal from those who knew or suspected but didn't tell him. And he'd have to figure out how to fit this new relationship into his life, especially considering his role in the wizarding world and his ongoing battles.
He might be quite amused. Fanfiction often takes the original story in wild and creative directions. Harry, being used to the strange and unexpected in his own life, could find it entertaining to see how fans re - imagine his adventures, relationships, and even his character traits in new and different ways.
Charlie may initially be confused. Fanfiction isn't something he might be very familiar with. But once he understands what it is about Harry and Ginny, he might just shrug it off. He's got his own life with dragons and such, so he might not really care all that much as long as it doesn't cause any real - world problems for his sister and Harry. However, if it spreads some false or unflattering rumors in the wizarding community, he might get a bit annoyed.
In the fanfiction world, Snape might be initially shocked. He has a complex relationship with Harry. He could feel a sense of protectiveness that he rarely shows openly. He might use his skills and knowledge to find the perpetrator and seek justice for Harry.