[personjerry]

But it doesn't have anywhere near the number of users Reddit does...

User engagement goes down with number of users, so it's really not a good metric for the "popularity" or even "value" of a site.

[snorlock]

The user base have been exploding lately but user engagement is still keeping up. But yeah I agree with that user engagement goes down with the number of users increase, but for now that statement doesnt hold.