Apparently I managed to get a cheesed kill on ahoo'ru today. The bug that teleports more than one person into the same fight happened and we were like 5 in there, with sanoriak at very low health. We killed it, and everyone got credit for killing their current rank boss, and rose a rank.
It feels kinda crappy getting rank 10 in such a cheesy way, but still, it's nice not having it spend more time practicing on him.