What qualifies someone to be a science advisor on physicsforums?

[symbolipoint]

An alert tab has a link to all alerts, one of them saying that I am a science advisor. How? Some knowledge within a few sciences, yes; but SCIENCE ADVISOR? I do not understand what justified that label. What qualified me for that on physicsforums?

 

[Greg Bernhardt]

That must be an error. Working on it.

 

[Matterwave]

My single Science advisor badge is so lonely up there above my avatar...