I'm surprised tye didn't mention it, but, it's been our long-standing philosophy (note - philosophy, not policy) that making new posts "too invisible" to the poster is generally not a good thing, and that the problem is worse for users of lower experience level, with it being particularly noxious for AM. The reasoning (based on experience) is that if the user can't see the post she just submitted, she'll post it again. And again. And again. We don't need that.