I use "Active" as more of a "Current Action" or "In Progress" status. I actually make use of almost all of the statuses, except for "Reference" (which goes into Evernote or Toodledo notes) or "Canceled"
I'm also using "Active" for search purposes. Projects that are open have an Active status. But like others have stated, I'm also trying to keep from making it too complicated, so I only use the "Active" and "Next Action" status fields.