whatsthebigidea

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Ideas
If someone has an idea they want to bring into the world, now they can start an idea working group on your WordPress! Allows a user to post an idea to an Ideas page at /Ideas/. A BuddyPress group with bbPress forum 
 are automatically created when this post is published!
-During installation, there is a prompt to auto-install the required plugins: User Submitted Posts, BuddyPress, bbPress and WordPress Classic Editor. 
 -The User Submitted Posts required plugin is used to provide the way for users to post an Idea. 
 -The users post appears in wp-admin to be edited and published by the site admin. 
 -When published, a BuddyPress group with bbPress forum are created automatically! 
 -Ideas posts are all displayed on the /ideas/ page. 
 -The Ideas page displays links to the BuddyPress group, a donate url, and has a description of the Idea. 
 -The data contained in the ideas.xml file is displayed on the /ideas/ page. 
 -The Ideas from any other sites can be displayed on the /ideas/ page. 
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<h3>Arbitrary section</h3>

BigIdeas

Allows a user to post an idea to an Ideas page at /Ideas/. A BuddyPress group with bbPress forum are automatically created when this post is published …

Muhammad Saleh

Frontend Post Builder allows site administrators or users to submit WordPress posts (or any custom post type) from the frontend of your website. This plugin is ideal for user-generated content, blogs accepting guest posts, job boards, or any website requiring frontend content submission.
Features:
<ul>
<li>Frontend form for post creation.</li>
<li>Supports all public post types.</li>
<li>Includes status selection (draft, publish, pending, etc).</li>
<li>Admin settings to choose post type and status.</li>
<li>User registration form builder.</li>
<li>Simple and clean UI.</li>
<li>Developer-friendly hooks and templates.</li>
<li>Secure with proper nonce verification.</li>
<li>Media upload support.</li>
</ul>
<h3>Usage</h3>
<ol>
<li>Configure which post type should be allowed for frontend submission via plugin settings.</li>
<li>Add the <code>[fronpobu_form]</code> shortcode to any post or page.</li>
<li>Users can fill in the form to submit a post.</li>
<li>Posts are created with the selected post type and saved with the chosen status (publish, draft, etc.).</li>
</ol>
Registration Form: 
– Use the <code>[fpb_register_form]</code> shortcode to display a user registration form. 
– Configure the registration form fields in the admin area.
<h3>License</h3>
This plugin is licensed under the GPL v2 or later.

Frontend Post Builder

Create WordPress posts and custom post types directly from a frontend form. Ideal for user-generated content, guest posts, and custom workflows.

BigIdeas vs Frontend Post Builder