Yes, they can. Usually, stories that capture people's attention quickly, have a wide appeal, and follow the platform's guidelines have a better chance of getting on the FYP. However, it's not guaranteed as it's also influenced by randomness and changing trends.
Some characters might be flattered. For example, Izuku Midoriya would probably be really shy but also a bit happy that people are so interested in his story and his growth as a hero. He might see it as a sign that he's making an impact.
It's possible for stories to appear on FYP. The visibility often depends on your preferences, the popularity of the story, and how recently it was posted.
Well, it really depends. Sometimes you'll see a lot of stories on FYP, especially if you follow certain topics or users. But it's not a guarantee. The platform's algorithm decides what gets shown based on various factors like your viewing history and engagement.
Inosuke doesn't become a Hashira in the manga. The story progresses with him having other significant experiences and achievements instead of achieving that specific position.
It's hard to give an exact number. Different story arcs and battles led to the deaths of multiple hashira. Some died heroically, while others met their fate in unexpected ways. The count changes as the manga progresses.