Great point. It's also telling how you offhandedly refer to "everyone" of your female friends sorting through Tinder - another thing the gp poster misses is how strong the network effects are! I've been off of it for 2 years, but even then, Tinder had quickly become basically the only game in town. For almost all single people I've met in recent years in a variety of communities (college/grad-school aged, many professional circles) it's just the default method of dating.