Or it could be designed to accomodate people who don't have more time for NW (or gaming in general) than a couple of hours every week, letting them experience some measurable progression every time they log in.
I am that player. I may log 3-6 hours a week. I have a 20th level TR and a 15th Level GWF(2+ weeks of play total). 35 levels in less than 3 weeks of playing a character in a game that theoretically can be played forever... to fast of progression.
Comments
I don't think you understand what 'proof' means.