Take compliments from strangers lightly and criticism from strangers lighter.

A stranger has seen a sliver of you: one photo, one minute, one bad day. That makes their praise pleasant but weightless, because it is about the sliver and not about you. Their criticism carries even less, since it costs nothing to type and often says more about the mood they were in than about anything you did. Weight should follow knowledge.

When a comment from someone you do not know lands hard, ask one thing before you take it in: does this person know anything about me. If not, let it pass through. Save the real weight for the few who have watched you up close.