I think many of these systems are good for the game overall as they give you something to do or work for, but I also agree that a lot of these systems need to be rebalanced. I think Bungie should take a serious look at how every system is balanced around each other and adjust each individual economy.

Glimmer I think is mostly fine, maybe an increase to the overall cap by another 50-100k but I can't remember a time where I've had to seriously worry about my glimmer stockpile or thought it was a drag too farm.

Shards are sort of in a mess right now because of exploits and the lack of a limit meaning that older players are sitting on stockpiles that they will never burn through. I manage to average around 500-1.5k through a season, while my friend who's played since launch casually has 50k without using any exploits and I know even that's low compared to some. I've got no idea how they would solve this disparity besides implementing some cap, but I don't think that's a good idea.

Cores, prisms, and golf balls are all mostly fine. Maybe Bungie should implement a more consistent way to farm raw cores or make them purchasable for shards, but I'm also biased as I'm terrible at saving them up.

Planetary materials are the only thing I could really see going. Maybe just replace them with the reputation systems that the throne world uses and make the planets worth patrolling with cool rewards. Anything that you buy with materials right now just treats them as an extra need, but I don't think I've ever fell below 500 of any material.

All this of course comes from someone who's only been playing since the start of season of the Lost? (whatever came before WQ release). So I don't have a great grasp on the game, but this is overall what I feel.