[michaelbuckbee]

There is a big gap between a two way medium like Twitter and something like the frustratingly one way App Store reviews.

I think HN is mostly familiar (and admiring of) Zappos and their awesome customer service. Twitter is bar none the easiest, cheapest way to get positive public customer support stories.

Most twitter users have a handful (less than a 100) people they regularly interact with and are kind of amazed that a company would take the time to message them directly about an issue they were having.

From there it is usually easy to get a dialog going and when their issue is fixed they aren't just satisfied but ecstatic about your company and product (typically they go back on Twitter and talk you up to their friends).