I know this is a bit old but just to give a heads up, this does not seem to work anymore. Looked at the code of the core suppression feature but I am not sure about the mechanics here:
Also, by default it is installed as a theme instead of a component. Do you have any ideas?
I have manually added the code given by Sam to the header and tried disabling then enabling the “enable names” setting but it still does not work for me when the username and the name of the user are the same.