I was under the impression that the name that appears on a question line is the name of the last person who either supplied a solution or made a comment on it. However, (at least) for the question "Should high-rep users hang back a little?" this not the case. I failed to find "Axel Sommerfeldt"s comment or answer. (See attached figure.) Perhaps, I do not know what the name that appears at the end of a question supposed to mean?