Little Red Book content is algorithm-driven, the performance is strongly connected to search volume and post engagement. Thus optimizing the keywords in your post title is a shortcut to success. Just like a search engine, Little Red Book’s trendy keywords change all the time, impacted by the number of search queries and the popularity of top-performing posts.
Keyword ranking = Number of search queries X Engagement of top posts containing the keyword
500-character content is more likely to pick up on trendy keywords, and thus benefits from the search traffic.