TIEro

This plugin is now available as part of <a href="https://wordpress.org/plugins/tietools-automatic-maintenance-kit/" title="TIEtools" rel="ugc">TIEtools</a>, which also includes post expiry and server log file removal.
A simple duplicate post deletion plugin. Spots posts with the same title and removes all but one of each.
<ul>
<li>Checks in published, draft, pending and private posts on demand</li>
<li>Includes or excludes user-defined list of categories</li>
<li>Moves all duplicate posts to the Trash (leaving the oldest or newest original copy)</li>
<li>Permanent post deletion is handled by WP’s built-in Trash removal</li>
<li>Power button to switch everything on and off without messing with the plugins page</li>
</ul>

TIEdupedeleter Simple Duplicate Post Deleter

Simple duplicate post deleter. Trashes duplicate posts based on status and category. Keeps newest or oldest original copy.

Lee Thomas

This plugin enables site administrators to manage users in a structured hierarchy with additional metadata and logic.
Key Features: 
– Assign users to organisations 
– Set membership types (e.g., Member, Admin, Delegate) 
– Define expiry dates (organisation-wide or user-specific) 
– Status control (Active, Inactive, or custom) 
– Optional inheritance of expiry/status from organisations 
– Admin interface for managing organisations and members 
– Highlighted user lists for active/inactive members
Ideal for associations, federated networks, or multi-tiered membership models.
<h3>Usage</h3>
Navigate to Users > Membership List to view and manage all assigned members. 
Use Settings > Membership Hierarchy to customise the labels and options.
<h3>Shortcode</h3>
No front-end shortcodes are included in version 1.0.0.
<h3>License</h3>
This plugin is released under the GPLv2 or later. 
See https://www.gnu.org/licenses/gpl-2.0.html for details.

Lee's Membership Hierarchy

Manage hierarchical memberships by grouping users into organisations with roles, statuses, and expiry options.

TIEdupedeleter Simple Duplicate Post Deleter vs Lee's Membership Hierarchy