I find it a much bigger "F U" to host an issue tracker and completely ignore it (perhaps while you continue development on other features), or worse, close new items out of hand. At least he's taken the time to clarify what can be expected of him. To me, that's a simple show of respect toward the community.

No, it's not a "F U". He created something, he made it available to everyone to download, build, use and extend. On top of all of that, why would he have to apologize to the world because he doesn't want to hear about feature requests from non contributors at this stage of the project.