I guess it's a testament to Burp's popularity that Peter is getting around so much.
Remember, if you do want to change the default Burp Spider settings to submit a different name in your forms, the configuration details are here.
Update:It seems Peter's fame continues to grow. Someone sent me the following photo showing the result of testing a network device:
If anyone has any further evidence of Peter's travels, email me and I'll post them here.