It can help with location when you're on a device that doesn't have a GPS receiver. Like a laptop.
It might also help with initial positioning since it can take several seconds or minutes to get a GPS lock.
Edit: For anyone who want to contribute to BeaconDB there is NeoStumbler on F-Droid
Save a click. The movie is "I Love Boosters".
https://www.rottentomatoes.com/m/i_love_boosters
https://www.imdb.com/title/tt30827810/
It can help with location when you're on a device that doesn't have a GPS receiver. Like a laptop.
It might also help with initial positioning since it can take several seconds or minutes to get a GPS lock.
Edit: For anyone who want to contribute to BeaconDB there is NeoStumbler on F-Droid