I was wondering as well. I _think_ he is just a user; an Apple fan ("community"). To some extend Apple employees probably moderate this forum (same as here, or at Stackoverflow.com), but most comments are from the community. I didn't find a way to file a security issue, so I thought I ask a question in this forum, hoping someone can reproduce it, and someone understands this is a security problem, and then forwards the problem to Apple. But that never happened.