In keyword research for a wiki page, what distinguishes a valuable 'long-tail keyword' from an irrelevant one?

In keyword research for a wiki page, a valuable 'long-tail keyword' is distinguished from an irrelevant one by its *high relevance to the specific page content and its ability to attract a qualified audience seeking precise information*, as opposed to general or unrelated traffic. Long-tail keywords are longer, more specific phrases that people use when they are closer to making a decision or finding a specific answer. Relevance means the keyword accurately reflects the topic covered on the wiki page. If a page details the powers of a specific character, a valuable long-tail keyword might be 'character X specific power limitations', because it directly relates to the page's subject. Qualified audience means the keyword attracts users who are actively seeking the exact information the wiki page provides. An irrelevant long-tail keyword, even if it contains fandom-related terms, would attract users looking for something else entirely, resulting in high bounce rates and low engagement. For example, the keyword 'cheap fantasy novels like [Fandom Name]' is irrelevant to a wiki page detailing character lore, as it targets users interested in purchasing books, not exploring in-depth fandom information. Therefore, relevance to page content and the ability to attract a qualified audience seeking specific information are crucial differentiators for valuable long-tail keywords.