There is a lot of information to be gleaned from just a few pictures that I think people gloss over. Maybe it's me, but I find it pretty easy to start narrowing down what I'm looking for based on pictures.
How a person chooses to represent themselves in pictures can tell you a lot about where they find themselves happy (traveling, inside, outdoors), when they think the look good/feel confident (in a gallery, out clubbing, on a farm, in a mirror), and what their hobbies/work consists of from just a few frames. I much prefer this to reading a massive block of text, then trying to regurgitate it in the form of a joke on a more traditional dating site.
My main gripe with Tinder is that sometimes people are more aware of this than others, so I may get a false-positive match that appears great. But they are really just curating a very specific slice of their life, instead of it being a more representative sampling across it. Although, even this becomes pretty easy to identify once you've become familiar with the common memes (e.g. picture petting a tiger)