Name the protagonist BUM, every player would have named them BUM if you gave them the choice.
RPG Maker Forums
Cadh20000
Personal preference here, but I would have a default name but still give them the choice to REname him/her if the player wants. As long as you use the \n command it will read the name used, whether default or custom.
djDarkX
See, I forgot to mention what Cadh said about the default name. Still, the rest of what I said still applies regardless. 
Reynard Frost
Just ask yourself, do you want "TURDBURGLR" to be your protagonists name?
If you don't, there is less freedom for the player to give them their own identity, however you can do that for them and create a truly amazing character that will be referred to by name in conversation.