> By cross referencing [social media posts] with actual lost luggage data it estimates very closely how much luggage is constantly being lost. > Using social m

> By cross referencing [social media posts] with actual lost luggage data it estimates very closely how much luggage is constantly being lost. > Using social media as a data source has limitations but seems to be a good proxy indicator when combined with historical lost luggage data. I'd like to understand the methodology better here. What's the "historical lost luggage data" referenced here? I'm skeptical of how accurate scraping twitter posts is. Many (if not most) incidents don't get posted about, so I assume they must be doing some extrapolation.