-#define ERR_CHANNELISFULL_MSG "471 %s %s :Cannot join channel (+l)"
-#define ERR_SECURECHANNEL_MSG "471 %s %s :Cannot join channel (+z)"
-#define ERR_OPONLYCHANNEL_MSG "471 %s %s :Cannot join channel (+O)"
-#define ERR_REGONLYCHANNEL_MSG "471 %s %s :Cannot join channel (+R)"
+#define ERR_CHANNELISFULL_MSG "471 %s %s :Cannot join channel (+l) -- Channel is too full, try later"
+#define ERR_SECURECHANNEL_MSG "471 %s %s :Cannot join channel (+z) -- SSL connections only"
+#define ERR_OPONLYCHANNEL_MSG "471 %s %s :Cannot join channel (+O) -- IRC opers only"
+#define ERR_REGONLYCHANNEL_MSG "471 %s %s :Cannot join channel (+R) -- Registered users only"