100% coming from nolani. Most probably botted, too… like 90% of all content nowadays
fortunately not even close to 90% - they do not aim to cover everything, just the popular profitable ones... woc, nolani, doa, dragon moss, magmas shields, outcast shields, feathers (and other con materials), vaettir, ecto, zkey and likely many more - but no one is running some of the juicy spots that I won't easily list here for their easy reference - but let's say there is still some very cool its that are not botted at all - whereas I agree that most items on the market these days originates in bots and bots are really destroying the game as was.
I guess not even a relevant fraction of the game is played actually, "normal" players also usually just do their hand full of scs, nick items, woc, nolani (and very few other farms) and occasional missions/vanquishes for their titles and ofc the trading but other than that the game is entirely dead. so maybe 90% of what the "normal" player does is botted - and that might not be 5% of the game content 
the obby staves most likely come from nolani - but there's not too many bots yet, so might as well take some time till those get inflationed much.