Поправил is_content_unlocked().

code/modules/client/client_procs.dm

@@ -167,7 +167,7 @@ GLOBAL_LIST_INIT(blacklisted_builds, list(
 	Click(target, target.loc, null, "[button];[href_list["statpanel_item_shiftclick"]?"shift=1;":null][href_list["statpanel_item_ctrlclick"]?"ctrl=1;":null]&alt=[href_list["statpanel_item_altclick"]?"alt=1;":null]", FALSE, "statpanel")
 
 /client/proc/is_content_unlocked()
-	if(!prefs.unlock_content || !(IS_CKEY_DONATOR_GROUP(key, DONATOR_GROUP_TIER_1)))
+	if(!prefs.unlock_content || !IS_CKEY_DONATOR_GROUP(key, DONATOR_GROUP_TIER_1))
 		to_chat(src, "Become a BYOND member to access member-perks and features, as well as support the engine that makes this game possible. Only 10 bucks for 3 months! <a href=\"https://secure.byond.com/membership\">Click Here to find out more</a>.")
 		return FALSE
 	return TRUE