Would you actually interact with the person who own the Instagram account that you interact with in real life? Why would Instagram supposes that you would? Account you interact with
Are all the people who you follow the same person as you are? Does Instagram has the right to categorize you or any other person? People you follow
Do you actually like the photo that you "like"? Why Instagram makes you look at the photos that it thinks you like?Photo you like
Do you always visit a post in purpose? How did you interact with a post? is it ok for Instagram to keep track of the posts that you interact with?Post you interact with
How does Instagram know whick account is similar to which? Base on what aspects does Instagram group different accounts? Similar to people you follow
who pick out the similar posts? is there a person who sees all the posts and groups them? if not are we looking at what a non-human being tells us to look at everyday? Similar to post you interact with