Everyone publishes the awesome shit they do. Nobody publishes constantly things they suck at, things they failed at, things they won't attain.
What I've found is that if there's a stretch where there's a lot of bad news, people will just tune you out, where comments dwindle and activity lessens even when that trend has reversed itself. In my incredibly small and unscientific sample size, it seemed that with negative news, there was a greater chance for people to "tune out", while people I knew that did the "everything is awesome" timelines would have higher then average interaction.
Thought it was interesting at least. I wonder if would be reproducible, or if it's just a weird quirk for the people that I know on there.