I prefer using an LCD screen rather than a viewfinder for my street photography because it all allows me more flexibility and increases my stealth.
See from a new perspective
The LCD screen unlocks more perspectives and angles to play with my photography. I believe that when you use a viewfinder, your vision mostly becomes narrowed down to that one particular way of viewing the world from eye level. You can surely move your body up and down and get around using a viewfinder, but using the LCD screen is much more liberating and allows for more unique angles and perspectives. When I photograph using an LCD screen, I find that I can place the camera at a very high angle or very low angle with ease. This allows for more nuances and dramatic compositions. I find the LCD screen to be an invaluable tool to create the work that I desire.
You look like a tourist
In street photography, it’s wise to be more stealthy on the streets. I prefer using an LCD screen because I appear to be a tourist. When you see somebody walking around with the LCD screen in front of their face, it seems as if they don’t actually know how to operate a camera. I find this to be really great because you blend in with the actual tourists using their iPhones. It’s something that I used to my advantage on the streets as a way for me to get closer to people without them noticing.