Comment by jhkjhtiou45

> So it feels like not caring about backward compat is just a self serving easy way out for Apple.

I think there is more to it. I think is because they actually don't want obsolete software to be seen on their computers. Imagine people posting a picture with a Macbook on Instagram, and you see some ugly 1990 piece of software running on it. Not cool. So from time to time they remove whole frameworks, to force developers to re-implement the app in a new one, which is prettier. If no one is still around to maintain the app, that's ok too.

This is why you don't see any ugly software on Macs, they make sure to purge it every 5 years or so.