Foraged curios are dwarfed by crafted curios every world, and after a certain point, character progression becomes incredibly quick
Bluebells aren't seen as being worth it at this point because the current crafted curios are much better, and the infinite grind just sets the top factions ahead of everyone else for as long as they're willing to keep playing
As a trial run, it might be interesting to set a standard quality for all crafted curios (maybe buff them all by 5-10% across the board first) to slow down the progression of character stats in general and then reinplement stat caps (cap around 450-500). Yes, progression will slow down along with qualities in general for quite a while, but I feel that it would be needed to prolong the world's length and to avoid making the stat-cap too easily attainable.
Credos have been nice for character development and for spreading out that development over time, but I still feel that crafted curios and infinite caps are hurting the game more than helping
idk lel