Is a silent shutter useful for street photography?

Here is what the site says about that.

From Street: What matters: - Size and discretion. A small, plain camera at chest height draws far less attention than a big black body with a long lens. People act naturally around it. - A silent shutter. Mirrorless cameras can shoot silently with the electronic shutter. Leaf shutters, found in some compacts, are near silent even mechanically. - Fast handling. Physical dials for shutter speed, aperture and exposure compensation let you adjust without looking ...

From Street: Street: Street photography rewards a camera people don't notice and one you can shoot without thinking. Small and quiet beats megapixels every time.

Quoted from this site's pages.