They could be surprised. Fanfiction often takes the characters in new and unexpected directions. So characters might be shocked to see versions of themselves or Captain America that are different from what they know.
They would probably be very concerned. They might first check his vital signs to make sure he's okay. If they find nothing physically wrong, they'd start to consider other possibilities like magic or mind - control.
Some of her terrestrial enemies, like certain power - hungry individuals or organizations, might see her true identity as a way to gain power. They could try to capture her and study her to replicate her powers. Or they could try to blackmail her into doing their bidding by threatening to expose her identity to the public in a way that would make her a pariah.
Well, some React developers might be interested in MCU fanfiction as a form of entertainment. They could enjoy reading about different takes on their favorite MCU characters while also bringing their React - related thinking into it. For example, they might think about how to build an app that could display and manage different fanfiction stories in an organized way, like creating components for different story elements.
Well, I think some of the MHA characters would be really confused. For example, Midoriya might be a bit bewildered by the different superpower concepts in the MCU fanfiction. He's used to his own world's Quirks, and suddenly seeing things like the Infinity Stones and Asgardian magic would be a lot to take in.
The Avengers originated in Marvel Comics. Marvel has developed a vast universe of characters and storylines, and the Avengers are a key part of it. Their adventures have been adapted into various forms of media, including movies and TV shows.
Captain Marvel is Carol Danvers. She gained her powers through an interaction with alien technology and has become a powerful hero in the Marvel universe.
Marvel justifies Marvel Comics 1000 by presenting it as a celebration of their rich history and a platform to introduce fresh and exciting story arcs. It could also be a strategic move to attract new readers and reignite the passion of long-time fans.