Just how can you not see there's probably 20% of every purchase sitting on the table if competition was ever allowed to occur.
Not to mention the simple freedom of choosing what you want to install yourself, and not just what Apple allows you to...
I have the freedom to install whatever I want. I get that freedom by using Linux and Android. I choose to have that freedom by selecting platforms that provide it.
Many HN users seem to want all the benefits of Apple's approach with none of the downsides, and it doesn't work that way. Apple is what it is because it has a tight, coherent strategy, and forcing Apple to change that strategy will have knock-on effects that most Apple users won't like.
If you value freedom to install whatever you want, you chose the wrong ecosystem, and hijacking the ecosystem to satisfy your values is unfair to the vast majority of customers whose values already align with the ecosystem's.
It's no different than Nintendo's entry into the game console market being what it is—some people will choose that experience because what it offers is valuable for them.
For myself, I'm an Android phone user and a PC gamer, but just because I wouldn't choose those experiences for myself doesn't mean I begrudge their existence.
It does not apply to consoles.
It does make it possible for companies to keep some more money, but most importantly it allows them to sidestep the protections for my privacy that I pay a premium to Apple for.
A real DMA would force facebook, twitter, etc to open up for alternative clients. That would bring competition in and benefit the end user.
Not that whatever digital slot machnine company is allowed to keep a higher percentage of the diamonds they sell you in their free to pay game.