I missed this part but fansubs that do this in shows meant for children are the worst.I think the biggest problem with the sub vs dub thing is false information we had as kids when we got such subs that often... thirteened the things. Like all the fansubs that had Vegita screaming F-bombs every few words.
I don't mind light or minor swearing in the subs, like 'dammit' or 'crap' or other mild profanities. And if a character gets really pissed off or in a really intense scene, I'm cool with them dropping like a 'bastard' or something.
But when you just have the subs full of like hella intense swearing, that just reeks of insecurity to me. Like you gotta make the characters in the show aimed at like 11 year old Japanese kids be swearing up a storm to prove that this isn't actually for kids or something.