diff -Naur forum/inc/functions_post.php forum/inc/functions_post.php
--- forum/inc/functions_post.php	2018-09-11 20:40:45.000000000 +0200
+++ forum/inc/functions_post.php	2019-01-03 19:45:45.975729084 +0100
@@ -510,6 +510,11 @@
 		$post['button_find'] = '';
 		$post['onlinestatus'] = '';
 		$post['replink'] = '';
+
+		if($post_type != 3 && $post_type != 1 && is_member($mybb->settings['purgespammergroups'])) {
+			eval("\$post['button_purgespammer'] = \"".$templates->get('postbit_purgespammer_ip')."\";");
+		}
+
 		eval("\$post['user_details'] = \"".$templates->get("postbit_author_guest")."\";");
 	}
 
diff -Naur forum/showthread.php forum/showthread.php
--- forum/showthread.php	2018-09-11 20:40:45.000000000 +0200
+++ forum/showthread.php	2019-01-03 19:45:45.983729011 +0100
@@ -24,6 +24,7 @@
 $templatelist .= ",showthread_moderationoptions_approve,showthread_moderationoptions_unapprove,showthread_inlinemoderation_delete,showthread_moderationoptions_standard,showthread_quickreply_options_close,showthread_inlinemoderation_custom,showthread_search";
 $templatelist .= ",postbit_profilefield_multiselect_value,postbit_profilefield_multiselect,showthread_subscription,postbit_deleted_member,postbit_away,postbit_warn,postbit_classic,postbit_reputation,postbit_deleted,postbit_offline,postbit_online,postbit_signature";
 $templatelist .= ",postbit_editreason,postbit_quickdelete,showthread_threadnotes_viewnotes,showthread_threadedbox,showthread_poll_resultbit,showthread_poll_results,showthread_threadnotes,showthread_classic_header,showthread_poll_undovote,postbit_groupimage";
+$templatelist .= ",postbit_purgespammer_ip";
 
 require_once "./global.php";
 require_once MYBB_ROOT."inc/functions_post.php";
diff -Naur forum/moderation.php forum/moderation.php
--- forum/moderation.php	2018-09-11 20:40:45.000000000 +0200
+++ forum/moderation.php	2019-01-03 19:45:45.983729011 +0100
@@ -20,6 +20,7 @@
 $templatelist .= ",moderation_delayedmodaction_notes_redirect,moderation_delayedmodaction_notes_merge,moderation_delayedmoderation_thread,moderation_threadnotes_modaction_thread,moderation_getip_modal";
 $templatelist .= ",moderation_delayedmoderation_date_day,moderation_delayedmoderation_date_month,moderation_threadnotes_modaction_post,moderation_merge,moderation_split,moderation_threadnotes_modaction_forum";
 $templatelist .= ",moderation_delayedmoderation_openclose,moderation_delayedmoderation_softdeleterestore,moderation_delayedmoderation_delete,moderation_delayedmoderation_stick,moderation_delayedmoderation_approve";
+$templatelist .= ",moderation_purgespammer_ip";
 
 require_once "./global.php";
 require_once MYBB_ROOT."inc/functions_post.php";
@@ -2999,7 +2999,7 @@
 		{
 			error_no_permission();
 		}
-
+if(isset($mybb->input["uid"]) && $mybb->input["uid"] != "") {
 		$uid = $mybb->get_input('uid', MyBB::INPUT_INT);
 		$user = get_user($uid);
 		if(!$user['uid'] || !purgespammer_show($user['postnum'], $user['usergroup'], $user['uid']))
@@ -3116,6 +3116,69 @@
 			eval("\$purgespammer = \"".$templates->get('moderation_purgespammer')."\";");
 			output_page($purgespammer);
 		}
+} else if(isset($mybb->input["pid"]) && $mybb->input["pid"] != "") {
+		$b_ip = $db->fetch_array($db->simple_select("posts", "ipaddress", "`pid` = ".(int)$mybb->input["pid"]))["ipaddress"];
+		if(!$b_ip)
+			error("Couldn't optain IP-Adress ... is the Post-ID correct?");
+
+		$ip = my_inet_ntop($db->unescape_binary($b_ip));
+
+		// Posts
+		$postdata = [];
+		$query = $db->simple_select('posts', '`pid`, `subject`', "`ipaddress` = ".$db->escape_binary($b_ip));
+		while($post = $db->fetch_array($query)) {
+			$postdata[] = $post;
+		}
+
+		// Threads
+		$threaddata = [];
+		foreach($postdata as $post) {
+			$t_query = $db->simple_select('threads', '`tid`, `subject`', "`replies` = 0 AND `firstpost` = ".(int)$post["pid"]);
+			while($thread = $db->fetch_array($t_query)) {
+				$threaddata[] = $thread;
+			}
+		}
+		
+		if($mybb->input['action'] == "purgespammer") {
+ 			$plugins->run_hooks("moderation_purgespammer_show");
+ 
+ 			add_breadcrumb($lang->purgespammer);
+ 			$lang->purgespammer_purge = $lang->sprintf($lang->purgespammer_purge, htmlspecialchars_uni($user['username']));
+ 			$lang->purgespammer_purge_desc = $lang->sprintf($lang->purgespammer_purge_desc, $lang->purgespammer_delete);
+ 			
+ 			$postdeletehtml = "";
+			foreach($postdata as $post) {
+				$postdeletehtml .= "<li>".htmlspecialchars($post["subject"], ENT_QUOTES, 'UTF-8')."</li>";
+ 			}
+ 			
+ 			$threaddeletehtml = "";
+			foreach($threaddata as $thread) {
+				$threaddeletehtml .= "<li>".htmlspecialchars($thread["subject"], ENT_QUOTES, 'UTF-8')."</li>";
+ 			}
+ 			
+ 			eval("\$purgespammer = \"".$templates->get('moderation_purgespammer_ip')."\";");
+ 			output_page($purgespammer);
+ 		} else {
+			//Ban IP
+			$query = $db->simple_select("banfilters", "type", "type = 1 AND filter = '".$db->escape_string($ip)."'");
+			if($db->num_rows($query) == 0)
+			{
+				$insert = array(
+					"filter" => $db->escape_string($ip),
+					"type" => 1,
+					"dateline" => TIME_NOW
+				);
+				$db->insert_query("banfilters", $insert);
+			}
+			
+			//delete Posts
+			foreach($postdata as $post)
+				$moderation->delete_post($post["pid"]);
+			
+			//delete Threads
+			foreach($threaddata as $thread)
+				$moderation->delete_thread($thread["tid"]);
+
+			log_moderator_action(array('uid' => $uid, 'username' => $user['username']), $lang->purgespammer_modlog);
+			redirect($mybb->settings['bburl'], $lang->purgespammer_success);
+		}
+}
+			
 		break;
 	default:
 		require_once MYBB_ROOT."inc/class_custommoderation.php";