It doesn't seems like a very good strategy, though. It seems ok to drive visits from the blog to Hacker News, but not really the other way around (which I guess is what people wanted)
But those people are then likely to vote up the post on HN (I vote up most posts I comment on, otherwise there's no point in commenting if the post might die). If you have even just 1000 loyal subscribers to your blog, you could perhaps get a handful of votes early on in your post's life which is enough to get it to front page within the first couple of hours.
Mmmm, good point, I didn't though on that.
Anyway, if you have 1000 subscribers on your blog, it seems there's already an audience... For some "corporate announcement" it makes sense to have as much exposure as possible, but for a personal blog I'm still not sure is a good strategy...