I totally agree with Plexus and Reprap on this. Changing names should be a big deal and rarely done. I have seen user names changed by the mods on other forums only in extraordinary circumstances.
Printrbot original. Major mods: Y axis extended to ~8", Z extended to ~8.5". 5mm SS Z threaded rods w/ flex couplings. E3D hotend. Purchased Acetel gears. Glass bed with Elmers' purple glue stick for most prints. Top of Z axis rods have added cross structure similar to a Prusia i3.