The whole draw of grinding out difficult challenges and repetitive activities was for the gear and the knowledge that once your earned it, it was yours forever. It made the grind worth it. Finally getting a god roll item or finishing the challenge for pinnacle gear was worth the effort and the time required. By sunsetting weapons and armor, by giving everything a max power level, you effectively give everything an expiration date of approximately a year. And not only that, all the time and effort players have spent acquiring gear in destiny 2, farming rolls, getting that perfect stat drop on equipment and levelling it up. Farming resources to masterwork gear. Wasted time because all that gear is now useless after a set time. Why would you do that for each round of new gear knowing it won't be relevant in the future? What is the point of grinding and putting effort for great gear or weapons if you already know that gear will be useless in a year? Why put the resources into it? And that's assuming you acquire the gear as soon as it's released! For casual players, pinnacle gear or raid gear might take months to acquire, effectively halving its shelf life before they even get to use it. Why repeat activities farming for God rolls if that roll won't be useful to you in the future? The only reason to repeat a forge multiple times is to farm for good gear. But why bother farming for the best roll when you can just live with an average roll until it gets recycled. The replayability of all activities drops right off a cliff. Do the activity, get the gear and you're done, no point in doing that activity again unless you really enjoyed it. The only thing worth chasing is exotics now because they're the only thing unaffected by this nonsense. Nobody is going to regrind and reupgrade a full new set of everything each year if it's going to expire. Half the player base will simply leave destiny because their time and effort has been wasted.