I don't know D so I'm probably missing some basic syntax. If pointers cannot be copied how do you have multiple objects referencing the same shared object?
It's like how talking about the "hockey stick curve" in an exponential growth line is nonsensical. It's everywhere and the curve angles you see depend entirely on what scale you view it from.
I remember learning about this gotcha around the time that Go was coming out. I was very disappointed that they were sticking to this behaviour around the same time that JavaScript was fixing it. As a new language they get less sympathy from me.
It does feel like Go is relearning lessons of other languages quite often. It's good that this and generics could be fixed later on, but it's unfortunate that they couldn't fix the null pointers (and going further always defaulting to some default value) and error handling.
It is built into Android. Go to twitter.com, log in and then accept the install prompt that appears. It integrates seamlessly with link sharing OS UI and jump lists.