I can't comment about dunc, before my time here.
But as for custom titles, I don't remember ever hearing of one imposed, rather than granted. And really, it's the most minor sort of niggle an admin COULD oppose on a member, short of 'oi! dick'ead! fuck yer mom faggot' sort of degeneration. But if someone does fuck with it, I would trust Ren and 'Raxy to be impartial over others. I think Ren the most, since she has never ONCE shown even the merest hint of reproachable behavior when I've been a member to witness it, 'rax has posted in threads concerning arguments and moderation issues, but that is the ONLY thing I can state about her modding, she's no snake, anyhow. But I'd trust Ren completely. Then again, would 'rax, but Ren doesn't seem to take much user-visible role in admining.