I said it depends on the person. The majority may not care about it Till it becomes an unusable phone 3 years down the line which is why Apple dont bother to optimise it because it’s not worth the cost to do so. Apple also knows that those who do notice it yearly will end up buying another iPhone so that’s more revenue. Win Win either way.Sorry, I need to be clear: you're suggesting that a slowdown initiated on purpose by Apple is such that it may not even be noticeable until several years, thus forcing people to upgrade their phones...in a timeframe commensurate with a normal upgrade cycle.
That's some master plan.
This was mentioned in Anand’s benchmark of iOS 10
“As far as tackling these problems goes, the simplest option for Apple is to just do nothing. This sounds absurd, but if you actually look at the state of the market it's a perfectly viable option. Even if you agree that iOS performance has gotten worse since iOS 6, that hasn't done anything to hurt sales of the iPhone, or to hurt iOS update rates. The iPhone gets more sales and brings in more money now than it did during the time of the iPhone 5. This raises the question of whether your average user is actually bothered by frame drops throughout the OS. Even if they do notice, it doesn't seem to pose a very significant problem. As someone who is bothered greatly by these performance issues, I would not like Apple to go this route, but I recognize it as a valid decision.”