IP addresses are how content gets to your PC. If it truly hid the IP then nothing would work (internet wise).
The analogy is that you want to hide your street address. You remove that and the mail does not arrive.
But the gimmick does sell and people fall for it every day. I can only guess that folk don't want to learn how this all works since it can't fit in these small replies.
how do you use Hide my IP free. at download and after there are no instructions on how to use it