I don't see the point of grinding Ranks in Iron Banner that I know will reset for armor / weapons that I know have no upgrade path. I have sufficiently good armor / weapons already and the last time I grinded the Iron Banner, my stuff that I got and then grinded to max, didn't even last a week until obsolete. If I play any Iron Banner, it wont be to earn anything or to rank up, but just to try it out as an alternative to regular Crucible for a short while.