Recently, a forum frequented by anime sparked a heated discussion about those famous anime that reigned supreme in popularity but have since faded from the collective minds of fans. Forum participants expressed a variety of opinions on this intriguing phenomenon, exploring the possible reasons behind these works disappearing from the radar.
- Do something Crunchyroll, the second episode of KonoSuba has also leaked online
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One of the most debated points in the forum was the crucial impact of a story's ending on its long-term popularity. Many argued that an unsatisfying ending can leave a permanent mark on viewers, leading to the gradual obscurity of the series, even if it was initially successful. Others, however, highlighted the importance of a faithful adaptation of the original material, be it a manga , light novel, or game , as a determining factor in maintaining audience interest over time.

Therefore, some participants mentioned the negative influence of excessive commercial exploitation and market saturation. In a scenario where new series are continuously launched and related products are constantly promoted, it is easy for previously acclaimed works to be overshadowed by new releases. Lack of innovation and repetition of formulas were also pointed out as possible causes for the decline in popularity of certain series.
Shokugeki no Souma

This is definitely its fifth season
Hataraku Maou-sama!

This is a clear example of anime that failed to remain popular.
Ergo Proxy

It's the anime of the 2000s, the visual style, the themes, the ending theme by Radiohead. It used to be quite popular, but it's rarely mentioned nowadays.
D-Gray Man

Unfortunately, I have to mention D-Gray Man
Suzumiya Haruhi no Yuuutsu

Extremely popular during the 2000s and early 2010s, and now nobody remembers it.
The Promised Neverland

The first season was everywhere, however the second practically destroyed all its goodwill.
Tokyo Revengers

It was huge during its first season, but I hardly hear about it anymore these days
Fairy Tail

Actually, Fairy Tail was considered a good shonen for a long time until the power of the friendship stigma hit it, but I'd say it was a popular anime initially for a while, but nowadays people only talk about it to sink it.
Sword Art Online

It was ironically massive when it aired. "He only lost his reputation afterward, but during the broadcast it was crazy how many people knew him.".
However, the thought-provoking discussion led many fans to ponder the lasting impact anime has on popular culture. While it's exciting to keep up with the latest trends, it's important to revisit the works, even if we've forgotten them over time.
So, did you finally read this article this far? Which anime would you add to this list? Feel free to comment.
Source: Reddit list
