Index: sites/trunk/wordpress.org/public_html/wp-content/plugins/plugin-directory/widgets/class-committers.php
===================================================================
--- sites/trunk/wordpress.org/public_html/wp-content/plugins/plugin-directory/widgets/class-committers.php	(revision 5516)
+++ sites/trunk/wordpress.org/public_html/wp-content/plugins/plugin-directory/widgets/class-committers.php	(working copy)
@@ -36,9 +36,10 @@
 		if ( current_user_can( 'plugin_add_committer', $post ) || current_user_can( 'plugin_remove_committer', $post ) ) {
 			wp_enqueue_script( 'wporg-plugins-committers', plugins_url( 'js/committers.js', __FILE__ ), array( 'wp-util' ), true );
 			wp_localize_script( 'wporg-plugins-committers', 'committersWidget', array(
-				'restUrl'    => get_rest_url(),
-				'restNonce'  => wp_create_nonce( 'wp_rest' ),
-				'pluginSlug' => $post->post_name,
+				'restUrl'            => get_rest_url(),
+				'restNonce'          => wp_create_nonce( 'wp_rest' ),
+				'pluginSlug'         => $post->post_name,
+				'removeCommitterAYS' => __( 'Are you sure you want to remove this committer?', 'wporg-plugins' ),
 			) );
 		}
 
Index: sites/trunk/wordpress.org/public_html/wp-content/plugins/plugin-directory/widgets/js/committers.js
===================================================================
--- sites/trunk/wordpress.org/public_html/wp-content/plugins/plugin-directory/widgets/js/committers.js	(revision 5516)
+++ sites/trunk/wordpress.org/public_html/wp-content/plugins/plugin-directory/widgets/js/committers.js	(working copy)
@@ -18,6 +18,10 @@
 
 		$( '#committer-list' )
 			.on( 'click', '.remove', function() {
+				if ( ! window.confirm( pluginDir.removeCommitterAYS ) ) {
+					return;
+				}
+
 				var $row = $( this ).addClass( 'spinner' ).parents( 'li' ),
 					url = pluginDir.restUrl + 'plugins/v1/plugin/' + pluginDir.pluginSlug + '/committers/' + $row.data( 'user' ) + '/?_wpnonce=' + pluginDir.restNonce;