Private Queue?

[HammyMcSquirrel]

The other day I noticed on the queue page at the bottom there was text that said something along the lines of, "+21 private submissions" but the text is no longer there.

I'm not sure why that text was removed but can someone confirm if a private queue of sorts exists? I was looking at the queue to make sure a file I wanted to step hasn't been accepted already but it's hard to confirm if some of the queue is private.