Maybe he thinks it distorts the real story of the Avengers. Fanfiction often takes the original story and characters in unexpected directions, which might not sit well with him.
He might dislike it because it can create false expectations. Fans read fanfiction and might start expecting the real Avengers to act in a certain way that is not in line with their true nature.
Blame - placing is also a theme. After disasters or conflicts within the Avengers, Tony is sometimes made the scapegoat in fanfictions. The other Avengers might blame him for the team's problems, whether it's the destruction caused by his inventions or the rifts in the team's relationships. So the fanfictions show the Avengers hating Tony because they hold him responsible for these negative outcomes.
Maybe he thinks fanfiction distorts the real image of the Avengers. He's a proud and complex character who might not like how some fanfiction writers portray him or his team.
Differences in ideology can also play a part. Tony might have some views on how to handle threats or use technology that the other Avengers don't agree with. Maybe he's more willing to take risks with untested tech that could endanger the team or civilians, which would lead to resentment.
He could also become more defiant. Instead of trying to win back their favor, he might double - down on his actions and beliefs. For instance, if they hate him for his use of a particular technology, he might continue to develop it just to prove them wrong.
One possible reason could be creative differences. Some fans might feel that Tony's actions in the Avengers movies were too self - centered at times. For example, his decision to create Ultron without consulting the whole team led to a lot of chaos and destruction. This could make some fans write fanfictions where the other Avengers dislike him as a way to explore the consequences of his actions more deeply.
It depends on the type of fanfiction. In some darker or more angst - filled fanfictions, it is quite common as it adds drama. However, in more positive or team - building - focused fanfictions, it's not as common. These types of stories usually focus on the Avengers and Spiderman working together and getting along. So, it varies from one type of fanfic to another.
In some fanfictions, Tony might be kicked out of the Avengers because of a conflict in leadership styles. Maybe his high - tech and sometimes risky solutions don't sit well with other members who prefer more traditional or cautious approaches. For example, if a mission goes wrong due to one of his untested inventions, the team could lose faith in his decision - making abilities.