What does the little blue "advisor" sign by some of the user's names mean?

Can you change your username on here??

can you change your user name?^^^ I know its kind of a dumb question but I cant seem to find out where it would be if you can...

we the people? we the funadvice users? the royal we? we as in yourself in the third person?

I hope this doesn't sound like a dumb question but I've noticed on some of the question pages that theres a gold symbol in th...

How do you change your little logo title, like for ex. Jaw9, how do you change it to something else?

how do you get that little "advisor" thing on the side of your advice when you give it to people. Is it just because people r...

Some people like Phrannie have a gold icon by their name that says advisor under it. How do you get that, and what does it me...

I mean, when you're on your profile, do you see anything different that makes you know you're an advisor??

How do I you know; like sign up or whatever for photo of the day ?

What does it mean when you invite someone over on your homepage??