Users can have their own blog and write notes, articles, comments, or whatever.
Just as a sample, You really don't need to be an academic or talented writer, You can just write about an event or some local matter. For example, my city council member is a big advocate for car dealers and oil companies. He sees promoting cars as good for business, which has made this area a congestion zone and really somewhat undesirable.
Just for show, here is a list:
- more cars
- traffic jam
- high tension