You can remove the post and comment box in WordPress through several methods. For individual pages or posts, disable the comments in the Discussion settings while editing. If you want to apply this site-wide, go to Settings > Discussion and uncheck the option to allow comments on new articles. For a more technical approach, you can add filters to the functions.php file to disable comments entirely, like so:

add_filter('comments_open', '__return_false', 10, 2);

add_filter('comments_array', '__return_empty_array', 10, 2);

If you're managing events or other interactive content and need a streamlined solution, consider using a plugin like Simple WP Events, which offers easy-to-use options without unnecessary clutter.