Stats are only tracked when you play freeplay against at least one other human player.
So stats are only available on freeplay versus from my personal experience with the stat site.
When you play those types of matches the update to your stats is almost instant. You can check your kills, xp and so on.
On Xbox for the stat site it says something like 1000k matches played. This does not mean people have only played levels 1,000,000 times. It simply means they have only played versus from the freeplay menu that many times.
The stats site is not a good indicator of how active the brink community is on console. Because it does not track a majority of gameplay. Which is simply people grinding alone in campaign or playing campaign co op. Which is what most people do before they figure out the freeplay options.
People should keep this in mind before using statistics from brink’s stat site to troll on these boards.