OP, just add him to ignore. Everyone who is not bothered by his nickname reacts calmly
Unfortunately, ignore feature doesn't hide the username.
One of these users, namely suckmycock12, is banned. As for the other users you mentioned, there is nothing to ban them for, they don't have any posts written. And for a nickname on the forum do not ban, no matter what it is. The only exception might be imposters.
You're correct, I thought "archived" means inactive, but actually it's an another name of being banned. The user posted fake GMiner's download links, probably the moderator nuked him for doing that.