To summarize my (very different) position in the discussion moozooh referred to:
I think the ninja rank is pure crap, and I've thought this ever since Bisqwit's
piss-poor definition of it. I don't believe having this rank (or "master ninja", or "precursor", as I roll my eyes) helps the site in any way.
I'm of the opinion that
any forum ranks can cause implied superiority and favoritism. The tradeoff is that they give people something to aim for - but aiming for a subjective rank, to me, is just stupid. Although ranks based on concrete rules and not "who Bisqwit thinks fits these conditions" are less likely to cause these feelings, I would still prefer that the ranks were abolished altogether.
Adding in the rank of "Expert Player" proposed here would not remove the problems that the ninja rank causes, it would only hide them a bit more.
It should be noted that I've been told by several people that my opinion is in the vast minority.