What are the potential drawbacks of not utilizing the search function in a PHP forum for common issues?

Potential drawbacks of not utilizing the search function in a PHP forum for common issues include wasting time asking repetitive questions, missing out on existing solutions, and cluttering the forum with redundant posts.

// Example PHP code snippet for utilizing the search function in a forum
$search_query = "common issue";
$results = search_forum($search_query);
foreach ($results as $result) {
    echo $result['title'] . ": " . $result['content'] . "<br>";
}