While there is a point in linking from SE to here, the reverse makes no sense. We want people finding this place from elsewhere. We don't want to help people go elsewhere if they happened to stumble onto this place first.
Also, as a general principle, this site needs to stand on its own. If it constantly compares itself to SE, links to SE, and imports questions from SE, it will continue to be perceived as a poor SE wannabe. For a while yet to come, comparing us to SE will only make us look bad. The best thing to do is to proceed as if SE doesn't exist.