The comment module allows visitors to comment on your posts, creating ad hoc discussion boards. Any <a href="@content-type">content type</a> may have its <em>Default comment setting</em> set to <em>Read/Write</em> to allow comments, or <em>Disabled</em>, to prevent comments. Comment display settings and other controls may also be customized for each content type (some display settings are customizable by individual users).