On most forums there's no automated system that automatically shadowbans users for using a blacklisted IP. They also don't quietly remove comments in a way tha

On most forums there's no automated system that automatically shadowbans users for using a blacklisted IP. They also don't quietly remove comments in a way that is invisible to a user for triggering some keyword in AutoModerator or a spam filter. And there are usually no minimum karma or account age requirements for posters.