Importance of calling a child by its full name

In these days cutting the name of a chiuld while calling the child is a fashion. but if it is pronounced in a meaningless way nama shakthi will be reduced.A person should be called by his full name as it called by others a lakhs of times in one's life time like writing "sri ramajeyam" and should no be reduced like padmanaban as patthu as it will bring .

Thanks to agasthiar archives.