I have mixed feelings about this. From the perspective of the HN audience, it's useful to see what other startups are serving a particular need/niche. From the

I have mixed feelings about this. From the perspective of the HN audience, it's useful to see what other startups are serving a particular need/niche. From the perspective of the poster of the Show HN, this is probably annoying. However, it is at least marginally useful to see what the competition looks like, so you can figure out how to differentiate your product (or whether there are too many free competitors, and you should give up).