confucius say...
.
..do not confuse setter & judge.
Far be it for me to contradict Confucius, still less the Sybilline utterances of your good self, but ... err ... aren't they frequently one and the same person?
I don't see the New Statesman, so I don't know if the name Ms de Meaner still appears, but picking one up at random on the Internet, I find
The NS Competition No 4112
By
Leonora Casement Published 04 February 2010
Going back to 2008, I can still find "Set by Leonora Casement" and "Report by Ms de Meaner", but in view of the byline above, I can't help wondering whether they were in fact always the same person, and at some point she decided to merge herselves?