Prod bug fixes

cogs/crosspostcog.py

 
 	@commands.Cog.listener()
 	async def on_message(self, message: Message):
+		if message.author is None or message.channel is None or message.guild is None:
+			return
 		await self.__record_message(message)
 
 	# -- Commands -----------------------------------------------------------

cogs/patterncog.py

 
 	@commands.Cog.listener()
 	async def on_message(self, message: Message) -> None:
-		if message.guild is None or message.content is None:
+		if message.guild is None or message.content is None or message.channel is None:
+			return
+		if message.author.id == self.bot.user.id:
+			# Ignore self
+			return
+		if message.author.permissions_in(message.channel).ban_members:
+			# Ignore mods
 			return
 		patterns = self.__patterns(message.guild)
 		for pattern in patterns: