Of all the anti-sunsetting posts I've seen, this one I agree with the most.
What is the point of investing the time and energy in mastworking a weapon that can show kill count if after a year it will be worthless. I understood when weapons 2.0 came around and we got another perk and we got random rolls why my babies needed to be vaulted or dismantled in favor of new items. It made sense, new perks and a gear chase.
However, I've seen this myself, a weapon I got in Forsaken now in Season of Arrivals and it has the same roll, and a higher power cap...but I can not bring my kills since masterworking it....so why waste the items masterworking the item...