To see devices/bikes/shoes trends in Strava community.
If you look that Flickr, there is a page https://www.flickr.com/cameras which reports camera trends based on photo tags.
I think Strava can also have same idea, because many of our activities are tagged with a device (Garmin xxx, or Suunto xxx), a bike, or a pair of shoes.
This feature will show the popularity, trends and potential of each model of equipment. For example, I will know which GPS watch is most popular recently. I will also see that I PB of half Marathon is 2:04:10 with Reebook Zigkick Trail shoes, while others can hit 1:05:10 with same pair of shoes!
I believe this feature will benefit everyone in the community.
It will be cool and fun for athletes. It can help us to make wise decision before buying gears like GPS, shoes, bike. Further data-mining will even be invaluable to both Strava company and all those equipment manufacturers.