Well, Batman is a complex character. In reaction to fanfiction, he could potentially see it as a form of flattery in a way. If the fanfiction shows his heroic side in a positive light, he might secretly be a bit proud. However, if it delves into his darker secrets or portrays him in a way that goes against his code, he'd likely be very disapproving. He might even try to find a way to stop the spread of such fanfictions if they were too revealing or misguiding.
Batman might be initially surprised by fanfiction. He's a very private and serious character, so seeing all these different interpretations of his life and adventures in fanfiction could range from bemused to slightly annoyed. Some of the more out - there or inaccurate fanfictions might make him roll his eyes.
I think Midoriya's reaction would be the most interesting. He's such a huge hero fan and analyst. He'd dissect every aspect of Batman in the fanfiction, from his combat skills to his psychological state. He might even start theorizing about how Batman could exist in the MHA world and what kind of Quirk he could have.
The Joker would be furious. He would see Harley's marriage to Batman as a complete betrayal. He might go on a rampage in Gotham, trying to destroy everything that Batman and Harley hold dear. Robin would be very confused at first. He has always seen Harley as a villain, and the idea of her being Batman's wife would be hard to accept. He would need time to come to terms with it.
For Ruby, fanfiction is like a whole new world of possibilities. She'd be eager to see how fans envision their future battles and growth. Weiss, being the perfectionist, would analyze the fanfiction from a literary perspective. If it had good character development and dialogue, she'd approve. Blake would be drawn to the emotional depth in fanfiction. She might find some that really resonate with her own experiences. Yang would be the one to cheer on the wild and crazy fanfictions. She loves a good laugh and something that spices up their normal adventures.
They might be quite surprised. Some characters could be amused by the creative interpretations of their personalities. For example, Ruby might find it cool that fans see her as an even greater hero in the fanfictions. Weiss might initially be a bit critical but then come to appreciate the creativity. Blake could be interested in how fans explore her backstory further, and Yang would probably enjoy the action - packed scenarios that fans write for her.
Well, Bakugo might scoff at first. He'd probably think Batman is too brooding and not as straightforward as he likes his heroes. But then as he reads more of the fanfiction, he might grudgingly admit that Batman's detective skills are cool. Deku, on the other hand, would be super interested. He'd be analyzing every move Batman makes in the fanfiction, taking notes in his head about Batman's strategies and how they could be applied in his own hero work. Uraraka would be more focused on the relationships in the fanfiction. She'd be all 'aww' at the cute moments and feel for the characters when they're in trouble.
Well, Ruby might be a bit scared at first. She's brave but horror can still get to her. She'd probably keep reading out of curiosity though. Weiss would likely be critical, analyzing the writing style and how well the horror elements are executed. Blake might be more into it, as she has a darker side to her and could appreciate the psychological aspects of horror fanfiction. Yang would probably be making jokes throughout to ease the tension.
Well, Ruby might be a bit shocked at the dark and twisted nature of Saw fanfiction. She's used to more heroic and positive stories in her own world. Weiss would probably be disgusted by the brutality often depicted. Blake could see some parallels to the dark themes in her own past and be a bit more understanding but still not fully comfortable. Yang, on the other hand, would likely be vocal about how messed up it is.
He might be really surprised. Fanfiction often takes his story in all kinds of wild directions. Some fanfictions might show him in relationships he never expected, and he'd probably be a bit shocked at first. Then he might find it kind of cool that people are so interested in his world that they create their own stories about it.
They might be quite surprised. Ruby could be excited about the new take on the Arbiter in the fanfiction. Weiss might be a bit critical at first, analyzing the writing style and how it portrays the Arbiter. Blake would probably be interested in the deeper themes that could be explored through the Arbiter's story in the fanfic. Yang would likely be more into the action parts if there are any and how the Arbiter is depicted during those intense moments.
If RWBY were to react to JoJo fanfiction, Ruby would immediately be drawn to the vivid and imaginative worlds. She'd be constantly asking questions and making excited comments. Weiss would start off with a raised eyebrow, but as she reads on, she might start to appreciate the unique take on the JoJo universe. Blake would be intrigued by the different interpretations of the JoJo characters and how they interact. Yang would be the most vocal, shouting out her approval during the exciting parts. Each member of RWBY would bring their own perspective, which would make their reactions to JoJo fanfiction quite diverse and interesting.