I have created in Python this simple tool which deletes your IP address which is stored in .rp4 and .gst files from the game
In the past, old-school players used a similar program before uploading their replays online. But this program is lost somewhere in time, so at the request of Ravage, I created something simple with the same principle.
( however, the original program was apparently much more complex ).

Stored IP is rewritten into "00.00.000.000...org" format, both on:
.gst file - stored at the beginning ( 6A - lenght 13)
.rp4 file - always at the beginning and sometimes at 3/4 of file lenght ( 6A - lenght 13, 28F16 - may be variable! - lenght 13)

Added option to select multiple files at once

Tool was succesfully tested, but i recommend to make original backups of your replays, for any case, which can appears.

Idea: Ravage
Testers: DrSpeed, Ravage, Blazar
Author: Nescafe