Ive played FFXI for 5 years and I didnt notice anything you described. Guess it was server specific activity.
BTW: if utsusemi prices go 10 times up, it kinda sucks for buyers, but on the other hand - it is crafters paradise. If Id notice Chinese fellows bots buying any quantity of utsusemi, I wouldnt stop crafting it. Guess your server was lacking crafters.
And still it is way better than Market Wards in FFXIV. Thats how terrible MW is.
