diff --git a/code/modules/admin/admin.dm b/code/modules/admin/admin.dm
index 85d4be92516..5995e44a40c 100644
--- a/code/modules/admin/admin.dm
+++ b/code/modules/admin/admin.dm
@@ -122,7 +122,6 @@ GLOBAL_VAR_INIT(nologevent, 0)
 
 	if(M.ckey)
 		body += "<A href='?_src_=holder;boot2=[M.UID()]'>Kick</A> | "
-		body += "<A href='?_src_=holder;warn=[M.ckey]'>Warn</A> | "
 		body += "<A href='?_src_=holder;newban=[M.UID()];dbbanaddckey=[M.ckey]'>Ban</A> | "
 		body += "<A href='?_src_=holder;jobban2=[M.UID()];dbbanaddckey=[M.ckey]'>Jobban</A> | "
 		body += "<A href='?_src_=holder;appearanceban=[M.UID()];dbbanaddckey=[M.ckey]'>Appearance Ban</A> | "
diff --git a/code/modules/admin/admin_verbs.dm b/code/modules/admin/admin_verbs.dm
index de44ccd4788..5ddf090f101 100644
--- a/code/modules/admin/admin_verbs.dm
+++ b/code/modules/admin/admin_verbs.dm
@@ -492,51 +492,6 @@ GLOBAL_LIST_INIT(admin_verbs_ticket, list(
 		log_admin("[key_name(usr)] has turned BB mode [holder.fakekey ? "ON" : "OFF"]")
 		SSblackbox.record_feedback("tally", "admin_verb", 1, "Big Brother Mode")
 
-#define MAX_WARNS 3
-#define AUTOBANTIME 10
-
-/client/proc/warn(warned_ckey)
-	if(!check_rights(R_ADMIN))
-		return
-
-	if(!warned_ckey || !istext(warned_ckey))	return
-	if(warned_ckey in GLOB.admin_datums)
-		to_chat(usr, "<font color='red'>Error: warn(): You can't warn admins.</font>")
-		return
-
-	var/datum/preferences/D
-	var/client/C = GLOB.directory[warned_ckey]
-	if(C)	D = C.prefs
-	else	D = GLOB.preferences_datums[warned_ckey]
-
-	if(!D)
-		to_chat(src, "<font color='red'>Error: warn(): No such ckey found.</font>")
-		return
-
-	if(++D.warns >= MAX_WARNS)					//uh ohhhh...you'reee iiiiin trouuuubble O:)
-		if(C)
-			message_admins("[key_name_admin(src)] has warned [key_name_admin(C)] resulting in a [AUTOBANTIME] minute ban")
-			log_admin("[key_name(src)] has warned [key_name(C)] resulting in a [AUTOBANTIME] minute ban")
-			to_chat(C, "<font color='red'><BIG><B>You have been autobanned due to a warning by [ckey].</B></BIG><br>This is a temporary ban, it will be removed in [AUTOBANTIME] minutes.")
-			qdel(C)
-		else
-			message_admins("[key_name_admin(src)] has warned [warned_ckey] resulting in a [AUTOBANTIME] minute ban")
-			log_admin("[key_name(src)] has warned [warned_ckey] resulting in a [AUTOBANTIME] minute ban")
-		AddBan(warned_ckey, D.last_id, "Autobanning due to too many formal warnings", ckey, 1, AUTOBANTIME)
-	else
-		if(C)
-			to_chat(C, "<font color='red'><BIG><B>You have been formally warned by an administrator.</B></BIG><br>Further warnings will result in an autoban.</font>")
-			message_admins("[key_name_admin(src)] has warned [key_name_admin(C)]. They have [MAX_WARNS-D.warns] strikes remaining.")
-			log_admin("[key_name(src)] has warned [key_name(C)]. They have [MAX_WARNS-D.warns] strikes remaining.")
-		else
-			message_admins("[key_name_admin(src)] has warned [warned_ckey] (DC). They have [MAX_WARNS-D.warns] strikes remaining.")
-			log_admin("[key_name(src)] has warned [warned_ckey] (DC). They have [MAX_WARNS-D.warns] strikes remaining.")
-
-	SSblackbox.record_feedback("tally", "admin_verb", 1, "Warning") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!
-
-#undef MAX_WARNS
-#undef AUTOBANTIME
-
 /client/proc/drop_bomb() // Some admin dickery that can probably be done better -- TLE
 	set category = "Event"
 	set name = "Drop Bomb"
diff --git a/code/modules/admin/topic.dm b/code/modules/admin/topic.dm
index e1e31544d3e..d9510a4defb 100644
--- a/code/modules/admin/topic.dm
+++ b/code/modules/admin/topic.dm
@@ -446,9 +446,6 @@
 				alert(usr, "This ban has already been lifted / does not exist.", "Error", "Ok")
 				unbanpanel()
 
-	else if(href_list["warn"])
-		usr.client.warn(href_list["warn"])
-
 	else if(href_list["unbane"])
 		if(!check_rights(R_BAN))	return
 
diff --git a/code/modules/client/preference/preferences.dm b/code/modules/client/preference/preferences.dm
index 1979be243fa..112b8cdb64f 100644
--- a/code/modules/client/preference/preferences.dm
+++ b/code/modules/client/preference/preferences.dm
@@ -71,7 +71,6 @@ GLOBAL_LIST_INIT(special_role_times, list( //minimum age (in days) for accounts
 	var/max_gear_slots = 0
 
 	//non-preference stuff
-	var/warns = 0
 	var/muted = 0
 	var/last_ip
 	var/last_id