PayDelete

The DeadDelete Plugin for WordPress allows developers to make removing outdated content from their sites easy by allowing users to click a button that checks source URLs for 404 or 301 status codes. If the source returns a 404 the post is trashed. The same is true in cases of 301s if the final destination is known to be a destination for missing content.
DeadDelete is designed primarily for aggregators that copy content from other websites with source attribution links included. It is ideal for RSS based auto-blogs that include a large amount of content from other sources. With DeadDelete a user can click a button when they notice that an article is based on a source that no longer exists and remove your copy so that you don’t have to.

DeadDelete

DeadDelete is a Wordpress Plugin that helps webmasters eliminate outdated content by trashing posts with source attribution URLs that no longer exist.

ggwicz

It’s way too easy to accidentally publish or update a post on WordPress.
https://vimeo.com/178698875
Post Lock prevents accidental updating or publishing of content by requiring a password to do either.
<ul>
<li>Adds a layer of protection without adding a headache: unlocking a post is a seamless experience and takes a few seconds.</li>
<li>Works on all post types (you can easily exclude or include post types with a plugin filter).</li>
<li>Simple, solid code.</li>
<li>If a post is unlocked, and two beats of the WordPress Heartbeat API happen without action (which is usally 30 seconds, 15 per beat), then the post is re-locked.</li>
<li>Numerous plugin filters make it easy to customize the plugin.</li>
</ul>

Post Lock

Post Lock prevents accidental updating or publishing of content by requiring a password to do either.

DeadDelete vs Post Lock