A study by psychology researchers. Smith (February 8, 2010). Or as Bill Maher more crudely but usefully summed it up. Men want women to shut up.
Tinder may not want to advertise as such, but we all know what it's mostly used for. Yeah yeah, we know the amount of success stories of happy couples who met on Tinder is growing rapidly, but it's way easier to find a date for the night than it is to find someone looking for a long term relationship.
Using Tinder for the latter just wouldn't be smart you're quite literally deciding if you want to interact with someone based on nothing but profile pictures and a quote from The Office, so yeah, you can see how getting laid would be the main goal of most users. It's fast, easy, and if there's one app that even the shyest, most skeptical people will be on, it's Tinder. Hell, even celebrities can now have verified profiles on there meaning yes, you could match with one of the Hollywood Chrises if you're really lucky.