Primarily because LinkedIn has to bother with complying with their privacy policies and other T&Cs, and your site has none of that.
Why should I take all of my data and give it to you, a rando on the internet? Is it being stored? Will it be shared? Sold? Maybe, as there's nothing that says you won't.
Correct. But you can build this thing on your own, for yourself. LinkedIn didn't, and you don't trust this third party. So if you had the problem its trying to solve, you could just spend the 2-3 hours and build it for yourself, even if you don't have all the necessary skills to do so.
Those are totally fair points but what I agreed with here was that people will create _personal_ software to solve a particular itch for themselves, which is what I did here for my friends. I just decided to throw it on HN as I have some API credits remaining :)
Why should I take all of my data and give it to you, a rando on the internet? Is it being stored? Will it be shared? Sold? Maybe, as there's nothing that says you won't.
Looks neat, but strong pass because of the above.