Names can and do hurt, sometimes more deeply than sticks or stones. They can also help. Names can bring honor and dishonor. Wars have been started and marriages ended over names. Expectant parents agonize over what to name their child.
Some people even agonize over what to name their pets.
In knowing a person's name, we know something important. To have a name is to have an identity. People can call you, and you can respond to them. People can no longer say his name. You cannot refer to him verbally.