Constant change for the sake of change, spending resources which has no impact on the actual game, or regresses the games performance. Often taking something that is in a good place, and changing it to something that looks different but does not solve the issues with it in any way. More recently, it was the HUD notification issue, there are still a LOT of issues with it, in that the prioritization of the buffs/perks is not right, and things are bumped off the screen which have importance to show something that has no relevance (like exotic armor buffs/charges for Verity Brow). My main gripe is vault space, and the collections system. Crafting and collections should work hand in hand, allowing you to reduce the burden on the vault. With no vault space, there is no incentive to play activities to earn RNG drops... everything should be working towards progressing the character/collections, but collections really has no purpose outside of static rolls now... let it provide the ability to re-attain weapons that you have dropped, and through a quest, craft the weapon. There have been so many weapons that I have never been able to get the roll that I wanted after YEARS of trying, and now the weapon is either not available, or the perk pool has changed and the roll I want is gone forever (goodbye my Surplus/Vorpal Vouchsafe that I was grinding for to play Mayhem).