SAS,
Ahh but a position report is just that
Sorry, I thought that you were saying you would make a call to the other aircraft.
Seems we agree that appropriate position reports are very good for assisting pilots maintain situational awareness. In this respect I have no problem with pilots adding in say a "base" call provided there is a good reason for that call eg aircraft calls joining base and you are laready on base then making a position report would assist the pilot joining.
Regards,
DFC