Again, his registration is going nowhere if he hasn't put an address on it that he will receive the correspondence on.
Well ... the foreign friend DID provide an address where he can receive communications from the trademark examiner. Legalinfo123 just wants no part of the deception.
What is
required on the application is a declaration of citizenship and a mailing address. The applicant must swear that all facts provided in the application are true.
What the friend could have an issue with (other than legalinfo123’s objection to the use of his identifying information in the application) is his use of the trademark in commerce, without evidence of which his application (if not an “intent-to-use” application) will not be complete. He needs to provide a specimen.
If the friend is trying for registration of a mark in the US because the identical mark is registered in his home country, it
could be possible to do that, depending on the specific mark. Registration in other countries is (rebuttable) proof of ownership of the mark whereas in the US the (rebuttable) proof of ownership comes from first use in commerce and not registration.