Instagram access token to retrieve any user feed

Question

Is it normal that I can get any users feed with the same access_token? Here are two examples. The first is from the test account, it is what I should have a

Answer 1

Most apis work like this. Even though you are requesting public data (ie Imagine Dragon's instagram feed) they want to know who is making the request. They are probably tracking it to make sure no one is making a billion calls a day or something.