Maybe I can give you some insight, or maybe I should say some perspective. Bungie saw how frustrated people were with having to farm materials like Spinmetal, Spirit Bloom, etc. Instead of playing the fun content of the game like raids and Night Falls, people were farming. After around three months, Bungie decided they would let players spend marks, which become almost meaningless once you start raiding, on these materials. Players rejoiced. Finally.
Then Bungie did something weird. They increased how much glimmer it cost to upgrade items as well as "fixing" some of the methods people used to farm glimmer like certain spots or missions where people would kill the Major/Ultra's and then kill themselves to repeat the situation. It was unnecessary. Then, they did something even more strange.
Whenever The Dark Below released, they made it possible to upgrade your exotics. This is important, because especially for armor light level is the most imports stay. It costs an inordinate amount to upgrade, 7-8k. Some might argue they didn't have to give the players an option to upgrade, but I find that notion hilariously wrong because how few exotics there would be at max level. Four weapons and three armor pieces per character?
So now what happens is of people want to upgrade a quality weapon of gun, they need to farm for glimmer. No big deal right? The perks are reset, so they have to farm experience and glimmer now that they've already dropped 8k for the upgrade. Instead of just playing the game, they have to farm. Again, Bungie has said numerous times that isn't their design goal.
So now Hard Mode Crota releases. Xur hasn't sold Heavy Ammo for 2 weeks (I think), so it's likely you are low trying to do Hard Mode for the first time. Between how difficult Crota is, how buggy he is, and how dependent the fight is on heavy, if you want to attempt the fight you are almost forced to farm glimmer. So let's recap:
You have to farm glimmer to upgrade an item, you have to farm glimmer to purchase expensive perks, and you have to farm glimmer to buy heavy ammo which is 1k for a single pack. Instead of making the game more accessible, which they were clearly trying to do buy allowing the player to buy materials, they made it just as farming dependent as ever.
That's not good post launch support. And that's just the changes they have made. The raids are still a buggy mess, and that should be a priority in this game. It's inexcusable to me.