I just recently joined this game and I enjoy the leveling process so far, but as I have to interact with crafters, the marketplace and the economy in general, I was shocked how broken it is.
I started mining to get some gold and noticed now several times other players zooming by, just picking very specific nodes, going in straight lines on their mount from node to node. Me, going after and picking all the other nodes, ending up with ONLY common and uncommon rocks. Apparently my suspicion turns out to be true, there seems to be some kind of overlay that shows the node rarity and people are making hundreds and thousands of gold with this.
https://youtu.be/bvtUQXjLKs4?si=kW5I1aBPyRGosPsr Starting at 20:00. (I understand that this is no proof but my observations 100% match this)