Ok, I legitimately don't know what this guy is. It seems like a user, since his posts relate, but in the most recent one, he was advertising for a sandwich company while staying somewhat on topic, then performed a quick edit leaving a bunch of ellipses. If this is a bot, it's a very, very clever bot, but if it's a normal dude, then why was he advertising sandwiches?

Blargh, this is confusing.