You realize that the “free” online tax filing sites are doing the exact same thing. The only difference is their information is a ton more accurate with respect to income, location and gross spending habits.
My credit union offered me ‘free’ online use of tax software. I looked at the whole deal, and you would never be able to keep your own copy of what you did....the credit union would be keeping that copy. At that point, I just grinned and said ‘no thanks’.