This honestly could be in the game already, but I’m just not at that level yet. As you go up in gathering levels, is it possible to only have nodes that trigger for certain higher levels for you to find? AKA someone under 175 harvesting wouldn’t see it on their map, nor would the world produce it for them. It would be a reward system for investing in your certain gathering skill.
Ignore this if this is already in the game. I’m just trying not to spoil anything for myself by researching everything to death.