Nametags below usernames

[Walker]

Okay so I am using this forum for a while now. But I still do not understand a few things. Like how to put a picture beside my username. But the thing which confuses me is nametags. You can see things like Junior member,approved user,and trusted by nexon written below people's usernames. Just wanted to know what those things mean. And what are the benifits of being an approved user or trusted ny nexon guy.

Thanks in advance