Masarki Kondo

Asumaru

This plugin backs up before deleting posts.
When you click “Delete Permanently” WordPress will create an XML file to save to your server computer.
The XML file is stored in “wp-content/deleted_posts” on your wordpress. 
 The XML file is stored in the site-id if your wordpress is multi sites.
The XML file is stored with a format same as Export on WordPress. 
 If you want to restore the post, you can use Import on WordPress.
Supporting post-types are “post”, “page” and “custom post”. 
 But “attachment” is unsupported.
— Attention —
We warn users of version 0.1.x. 
 Version 0.1.x has an error at the time of the installation. 
 After having deleted version 0.1 or 0.1.1, please install you again.
<h3>Arbitrary section</h3>
— Attention —
We warn users of version 0.1.x. 
 Version 0.1.x has an error at the time of the installation. 
 After having deleted version 0.1 or 0.1.1, please install you again.

Before deleting the posts

This plugin backs up before deleting posts.

JS Morisset

The JSM Show User Metadata plugin displays user profile meta keys and unserialized values in a metabox at the bottom of the user profile editing page.
There are no plugin settings – simply install and activate the plugin.
<h4>Available Filters for Developers</h4>
Filter the user meta shown in the metabox:
<pre><code>'jsmsum_metabox_table_metadata' ( array $metadata, $user_obj )
</code></pre>
Array of regular expressions to exclude meta keys:
<pre><code>'jsmsum_metabox_table_exclude_keys' ( array $exclude_keys, $user_obj )
</code></pre>
Capability required to show user meta:
<pre><code>'jsmsum_show_metabox_capability' ( 'manage_options', $user_obj )
</code></pre>
Show user meta for a screen base (defaults to true):
<pre><code>'jsmsum_show_metabox_screen_base' ( true, $screen_base )
</code></pre>
Capability required to delete user meta:
<pre><code>'jsmsum_delete_meta_capability' ( 'manage_options', $user_obj )
</code></pre>
Icon for the delete user meta button:
<pre><code>'jsmsum_delete_meta_icon_class' ( 'dashicons dashicons-table-row-delete' )
</code></pre>
<h4>Related Plugins</h4>
<ul>
<li><a href="https://wordpress.org/plugins/jsm-show-comment-meta/" rel="ugc">JSM Show Comment Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-order-meta/" rel="ugc">JSM Show Order Metadata for WooCommerce HPOS</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-post-meta/" rel="ugc">JSM Show Post Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-term-meta/" rel="ugc">JSM Show Term Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-user-meta/" rel="ugc">JSM Show User Metadata</a></li>
<li><a href="https://wordpress.org/plugins/jsm-show-registered-shortcodes/" rel="ugc">JSM Show Registered Shortcodes</a></li>
</ul>

JSM Show User Metadata

throws now errors/warnings, good performance, just fulfills it's job. 5 stars

just works

Show user metadata in a metabox when editing users - a great tool for debugging issues with user metadata.

Before deleting the posts vs JSM Show User Metadata