No, it is not new and it is not a cause for traffic spikes.
AdWeek :: Adweek: Has this type of painstakingly curated and investigative citizen journalism been going on for a while and people are just getting wise to it on a national level, or is this something new to Reddit?
Erik Martin: ... on a much lighter note in some of our sports communities are pulling in real-time data from FIFA or the NBA or whatever league, and they'll pull those in to create informative threads. For the Euro 2012, users used the data from the games to find a different way to cover these live events. This has been going on since the beginning ... .
Interview with Erik Martin, Reddit - A piece by Charlie Warzel, www.adweek.com