There is a reason why they want to implement extra perk on 'new' weapon. When that batch of weapons released, they are most likely better than the 'old' one, at least mentally. The 'old' weapons would not have that extra perks. Usable? Definitely. Less desirable? Surely. The extra perks are in place of masterwork orbs. All this 'beat around the bush' changes only point to the issue of vault space. The hidden agenda. Some part of the community call it 'sunsetting'. They are not far from the true. About weapons crafting, we don't know anything apart from that big butter knife. No point being upset by all this charade. It is Bungie you know and always will be. Nothing change. Enjoy it if you could, toss it if you would. Only you change, never Bungie. Only a video game anyway, take it easy.