Here's my own experience as a tech hiring manager. My interview process is sometimes up to 3 months long. By the time I'm ready to make my decision it's difficult to remember who is who. I take extensive notes, but it's still a challenge. So resumes with pictures definitely help. If you interviewed well it's going to put you at the front of the pack (oh right, this dude was a badass!). Conversely, if you interviewed poorly, but were still pushed forward, it could hurt you during the final decision (oh, not this fucking wanker).