One can now greatly customize syndicate ids. Partially based on https://github.com/ParadiseSS13/Paradise/pull/1686.

code/game/objects/objs.dm

@@ -19,9 +19,8 @@
 	nanomanager.close_uis(src)
 	return ..()
 
-/obj/Topic(href, href_list, var/nowindow = 0, var/datum/topic_state/state = default_state)
-	// Calling Topic without a corresponding window open causes runtime errors
-	if(!nowindow && ..())
+/obj/Topic(href, href_list, var/datum/topic_state/state = default_state)
+	if(usr && ..())
 		return 1
 
 	// In the far future no checks are made in an overriding Topic() beyond if(..()) return
@@ -146,4 +145,4 @@
 	return
 
 /obj/proc/show_message(msg, type, alt, alt_type)//Message, type of message (1 or 2), alternative message, alt message type (1 or 2)
-	return
+	return