I saw a couple threads about this but linked to a blogging plugin that seems to have lost some steam?

So, Is it possible to automatically create and assign a category to a new user? And restrict new submissions to that category to that user? So, say "newuser1" signs up which then creates a "newuser1" category, and all links "newuser1" submits get filed in his/her "newuser1" category. Basically I think it's like giving editor status to users for their personal category.

Anyone try something like this?