Same. My thought for this, and I wanted to build a media industry specific alternative to Twitter using it, was to allow a tweet/story to have depth/paging.

So, imagine your timeline is a regular, vertical stream. But any tweet could have paging on the horizontal axis, and you'd hit next or swipe to continue reading. Anyone browsing could read the opening tweet and ignore the rest if they wanted. Subsequent tweets within the first could have a video, image gallery, etc. Analytics would show the writer how many people delved how far into the content.

So, for a sports story, some people might scroll past, or read the first couple of sentences, but a strong fan would read every detail down through the analysis and stats.

Not sure why they haven't tried this. They could supplant some news that currently exists as links outside of the app.