Who's here?

I see this label next to all the subreddits, so I was wondering what it actually means, what its purpose is, and how someone goes about earning it.
Thanks in advance

Is that number in parentheses,
like 505 or something?
I imagine that’s probably about how many users on Reddit are checking out that PDF.

Think "Users on Reddit: XY"? That’s how many Redditors are currently digging through this PDF...

oh, right 😵
I always just assumed they held some kind of higher status compared to your average forum user😁
thanks for clearing that up