It could be due to a lack of contributors or maybe the specific topic or fandom isn't that popular to generate more.
The limited number of 50 stories in fanfiction might be because it's a relatively unknown or unpopular theme. Or, it could be that the process of creating and sharing fanfiction for this is more challenging, discouraging many from doing so.
It could be that the author ran out of ideas or faced some creative blocks.
It could be that he is a very curious boy. When he first read the stories, he might not have understood everything. By rereading, he hopes to gain a deeper understanding of the plots, the characters, and the themes of the stories.
"Zi Chuan" was a web drama with only 24 episodes.
It might be popular because many fans are interested in exploring Izuku's relationships with male heroes specifically. It can offer a different dynamic compared to stories involving female heroes.
It could be that they struggle with maintaining interest and focus over the course of a longer narrative. Also, the complexity and depth of a longer story might be overwhelming for some, making short stories more manageable.
The news might cover only specific stories because of limited resources or because those stories fit a particular agenda or narrative. Also, sometimes it's based on what's considered most newsworthy at the time.
It could be due to historical and cultural biases in the publishing and entertainment industries. Maybe certain stereotypes and expectations have led to a focus on this particular group.
Maybe it's a setting or policy of the platform you're using. Some platforms limit views to prevent overuse or to encourage paid subscriptions.
It could be because expensive vehicles tend to draw more attention and generate more interest from the public.
In the Legend of Zelda's Breath of the Wild game, Link's HP was 30 hearts when he was at full health. However, for some reason, many players could only reach 26-27 hearts. Link's initial HP was 3 drops. He could increase it to 30 drops, which meant that he could increase it to 27 drops. In addition, the attribute slot obtained through the Goddess Statue could add up to two additional circles of energy. In order to gain extra energy, other than sleeping in a high-class hotel, one could also fill up the yellow energy bar by eating food and add two additional circles of energy. Overall, The Legend of Zelda's Breath of the Wild showed its level of production in the open world and became a watershed for the series.