Description:
Lots of players farm instances with lots of characters of the same class using restock. This system would enable player to avoid throwing important items into the favorites tab or having to carefully sell the loot, saving time and avoiding accidents.
In a NPC you would be able to tag the item so it doesn't show in the selling option of a Tool Dealer NPC. See this as a "forever in favorites tab" property to the item.
Why is this a good idea?
This would save players time and avoid loot selling accidents.
What risks or downsides does it have?
May require too much work for such small QoL. Edit: potential QoL and for (maybe) small part of playerbase