How can we delete posts?

Unfortunately, we can't, even when there's no answer yet to it, unless moderator does it.

Only option, as you posted less than 1 hour ago is to edit it, change the title (Post deleted for instance) and leave quasi empty content (that's probably what you did already)… Not really cool, but that's it.

I think it’s still under development and they might do something about it in future.

See deleting a forum question.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"