When we think about our goal for Artifact, we really want to create a space for people to explore the important stories and subjects in life, especially when someone might think that those things might not be worth capturing - they are! It's why Artifacts are default private or set up for easy sharing only among close friends, family, or colleagues.
Now if people want to share their interview more widely, they are of course welcome to do so, but I 100% agree with you that I think what we are building looses a lot if the assumption is that Artifacts are created for primarily public consumption, etc.
It's something we'll be paying close attention to going forward. Thank you very much for the astute comment.