Too many old articles

You expect to read the daily events and breaking news of the past 24 hours. Why does the app content have 20-30% of its article as old carry over articles that may show up for days, weeks and even months at a time. I dont want to spend my time wading past old stories every day to get to the pertinent news of the day.

moneys no help about The San Francisco Chronicle, v2.1.10