If I construct a popular online social network, I could run it on Debian, code it in Emacs, have all the source code on Github, genuflect to a picture of Richard Stallman daily, and still have no open APIs for users to interact with their data. If most major players on the Internet lock your data down, then many common uses of the Internet will in a very real sense become proprietary even if it is running entirely on free software.
I'm sure it's fun to smugly go "well, you use iOS so you should like closed things," but it kinda betrays a significant distance between you and the point.
Marco was blaming Google/Twitter/Facebook locking down devs/users in their own eco-system and your point is you get the interoperability within Apple's own garden? Come on.
BTW, you give a perfect example of what being hypocrite looks like. Sure, you can enjoy your time by hosting a closed service on top of open source infrastructure, that's hypocrite. You can also enjoy your time in a closed eco-system ever since from day 1 with absolutely no interoperate and still manage to find way to fuck those closed web based eco-system. That's also hypocrite.
Interoperate means what? Choice and competition. I see no spirit of either in Apple's eco-system. And somehow Marco always find a way to blame other companies for that.