Two ideas that came to my mind in regards to reading some posts on crafting – namely, about trait materials.
Of all the traits, only Nirncrux and jewellry crafting ones are valuable. And rightfully so, because they are very rare. As for other 8 materials, they are very common, and (almost) worthless.
Thus I suggest two ideas to get the gold flowing.
Increase the amount of trait gems for armour / weapon crafting – except for jewellery and Nirncrux
Restore "Prosperous" and remove "Reinforced"
During crafting we only need a single trait gem (which is fine as far as jewelry crafting and Nirncrux are concerned), but what is the worth of gems like Ruby, Quartz, Carnelian, Almandine, etc. in comparison to Fortified / Potent Nirncrux? Or jewellery trait mats? Around one gold, or less. In order to actually make the armor / weapon trait gems valuable, (thus boosting economy) the amount of gems required to craft a specific item could be increased. And the increase can be based on the amount of traits needed to craft.
Eg. Hunding requires 6 traits to be researched - one needs 6 gems of a desired trait to have it. Which means that front bar Hunding would require 12 gems (dual wield) or 6 (two handed / bow) as far as weapons are concerned.
This would be required especially in Master Writs. Again, this is to make those gems valuable, not to make things complex.
Otherwise one can craft low-lvl stuff that will be sold for pennies, researched for months, aaaaand that’s that. Basic style materials, used to craft such training gear, are slightly more expensive than that.
Why not change it to „Increases the amount of gold found by looting slain enemies and any other containters by X per cent.”?
For beginners this would make things slightly easier. No one will waste more honing materials above Superior quality to boost such gear. Obviously, 'gold farmers' would appear, and after some time they would understand that this trait is only good for farming mobs, chests and troves - and not the whole game. When I check other peoples' builds, I usually see Divines - Mundus Stone, Sturdy - tanks, Impenetrable - PvP.