[Haskell-cafe] What happened in Ohloh?

If you go to http://www.ohloh.net/languages/compare?l0=haskell&measure=projects and look at the number (not percentage) of Haskell projects you see it rise exponentially until the start of 2008 and then suddenly drop away. Does anyone know what happened? Assuming this is just an artefact because they aren't scanning Haskell project hosts, can we get them to fix it? I'd like to use this kind of graph at work as evidence that Haskell is on a growth trajectory. Paul.