Gamification - using some of the elements of games to encourage user engagement - is not a new concept, and has been employed by social networks for years. The old Jive CA community site employed this concept very well.
The Higher Logic-based Broadcom communities site clearly has
some capabilities along these lines, but these seem more like a proof of concept than a working feature.
For example, I can see some stats about what
points and
achievements I have earned, but no indication of how these were earned or what is required.