Reminds me of a dumb project I did that takes a person's name and returns a name that is close, but not quite right: https://github.com/rzimmerman/shitty-autoreply

The idea was to set up an auto-reply to my email that looked automated, but surely couldn't be because it messed up the sender's name. Not nearly as clever as Peter Norvig's program and even less useful.

I'd say the bias toward common American names is a bug, but given that the goal of the project is to be obnoxious it's probably a feature.