What was the purpose of making this a rule? It's one of the most natural reactions to scoring an important goal. I predict at least 1 or 2 teams will have their chances of qualifying for South Africa impacted by missing key players in key matches due to yellow cards given for this...by definition, this is a punishment exclusively given to goalscorers. Just these past 2 days, we've had Jozy Altidore from the U.S. and Dani Alves from Brazil carded for this reason...fortunately for fans of quality players, neither of them are suspended for the final...but it could easily not have been the case. Can anybody defend the existence of this rule?