A large part of sharing because people want to live vicariously through other people. And sharers know this, and so they help out. That is exactly what it was

A large part of sharing because people want to live vicariously through other people. And sharers know this, and so they help out. That is exactly what it was like for my Europe trip last year - it was a big enough deal to me personally that I wanted to record it as one of the highlights of my life, and I had friends and family that I knew were excited about the trip. So I shared with lots of detail, and they loved it. I think the sentiment in the article is more one of the side effects when the system gets out of whack magnitude-wise in one direction or another. Perhaps you're (not the poster; anyone) sharing habitually with no intent behind it, or perhaps you're resentful of your friends, or perhaps you haven't challenged yourself recently to go out and do something new or formative. But when used to share an actual highlight, with people that care about you and are apt to be happy about your highlights, it's a transaction that benefits both sides.