Jason Scribner is a nome de plume for Buz Cory. This name was intended when selected (Jan 2001) to be used for major creative writing.
So far such writing has not occured, but the name is being used meanwhile for various activities related to writing.
On Wikipedia, I tend to use "Jason Scribner" for anything related to humanities and the arts, and "Buz Cory" for anything technical. Either name might be used for simple things like Wikification.
Welcome to Wikipedia, Jason! --Koyaanis Qatsi