"Absolutely silly I have to either transcribe to paper for free or pay a tax prep firm for the privilege of performing data entry for them in order to file online...when the state & federal revenue agencies already have the paperwork covering what I need to report."
As I recall, it's a double-entry check-and-balance against underreporting income and the taxes associated with it. If you contract or self-operate a business, it gets much more complicated very quickly because now you have to declare and pay those taxes yourself (plus you lack the benefit of the 50/50 split).
Federal PDF forms for years have actually included form blanks meaning a compatible PDF reader would allow you to fill them out on your computer, print them out all nice and neat, and mail them off yourself. That's how I've been doing my taxes for the last several years. Check to see if your state has form-fielded PDF tax forms as well (I know Virginia's PDF are form-fielded).