As with anything this day and age, disclaimers and details convolute what really should be a simple thing.  However reading all the text isn't mandatory to understand how to use the calculator, though from a bitcoin newbie perspective, they'll want most of this information.  That being said, with a single paste and as little as 3 button presses, you'll have downloaded your current bitcoin capital gains/losses 8949 data.  I  would argue that's considerably efficient.  Can you suggest an specific example of how you would improve the process?