So the primary use for this database would be phishing, right? Or some attempt at building a reverse cell phone number lookup database, assuming people have reu

So the primary use for this database would be phishing, right? Or some attempt at building a reverse cell phone number lookup database, assuming people have reused usernames? My normal username was taken when I signed up for snapchat, but I suppose you could use this to get quite a few cell number -> instagram or twitter pairings?