The decision to grant anonymity to people accused of rape seems like a sensible move. Given how damaging such an accusation is it is a form of punishment regardless of whether a conviction actually occurs. The argument that it prevents serial rapists like John Worboys being caught seems ill founded- if the media were reporting that an unnamed taxi driver in a certain part of London had been accused of rape then surely that would be sufficient information to prompt any other victims who had been raped by a taxi driver in London to come forward.
One thing that does occur to me though, should anonymity routinely apply to all suspects in serious crimes up until such a time as they are convicted? Someone who is wrongly accused of murder is going to have a pretty tough time reintegrating into society if any time someone googles his name reports of the murder will be there.