If dragonfucker doesn’t want to be known as dragonfucker, then they need to make a new account. And if the name dragonfucker is offensive by itself then the user with that name needs to be banned.

https://lemmy.nz/u/dragonfucker

You can check dragonfucker is their literal username

I think the mod who removed the comment may not have realized Dragonfucker is the username and not a insult.