The great game is over! Well not yet but it seems the business utility of Twitter may have waned somewhat after they trottled back the feedback loop. However...
I looked again at these number and realised that they actually run over Thanksgiving in the US. Our users stats also went down in that period - the first week in 14 consecutive weekly rises so the correlation appears to be with the holiday period not necessarily Twitter's change.
Once again, the stats prove nothing.
It appears so. Sharing activity to Twitter has declined by 11.28% since November 20th.