Thanks for this.
As a casual D user who is coming from a Java background, I'm of the opinion that we do indeed need to improve Phobos to either (a) include lots of stuff in the std lib itself, or (b) guide users to trusted, well-tested third-party libraries. I've tried doing things with asynchronous stuff, http, encrypted sockets, etc, for small utilities we use at my work, but a decent amount of time is spent on just looking for a good library that works. Specifically, a single unifying async library similar to JS promises or Java's futures would drastically improve the ecosystem, imo.
