The problem is, new users are "new" for a few weeks or months at most. After that, they join the massive groups of people that have to spend years using tools.

The problem is, new users are "new" for a few weeks or months at most. After that, they join the massive groups of people that have to spend years using tools. New users should be given tutorials, online help or other kinds of training that successfully bring them up to speed. Those kinds of materials are then cleanly separated, and they get out of the way forever once the user is acquainted with the system.