Most? Who knows? Some? Probably. I've been to a couple of closing nights and people did stage door but as with any stage door experience, I wouldn't count on people coming out. Also, closing nights tend to be particularly crowded at the stage door from my experience. It was difficult enough to just get out of the theater when I saw Falsettos. The Walter Kerr does not have a great sidewalk situation for stage dooring. Good luck though!