Improved SEO: Optimizing keyword density can help improve a webpage's visibility in search engine results for specific keywords.

Higher rankings: Pages with appropriate keyword density may rank higher in search engine results pages (SERPs) for relevant queries.

Increased relevance: Proper keyword usage and density can make content more relevant to users searching for specific topics.

Better user experience: Well-optimized content with balanced keyword density can provide valuable information to users.

Keyword stuffing risk: Over-optimizing keyword density may lead to keyword stuffing, which can result in penalties from search engines.

Content quality may suffer: Focusing too much on keyword density may compromise the quality and readability of the content.

Algorithm changes: Search engine algorithms are constantly evolving, and keyword density may become less relevant over time.

User perception: Excessive use of keywords can make content appear spammy and reduce trust and credibility.