Startup Marketing Mistake: Losing People Through the Bottom of Your Funnel

<i>if your conversion rate is 1%, losing a single customer is like 100 people never coming to your website. Strike that traffic from your logs.</i><p>I'm not sure how well this actually holds up logically. (There are other parameters to take into account.) But it's a reasonable motivator to analyze retention in your specific case.

In other words, don't forget to actually <i>make</i> something. I don't think this will be much of a worry for such a technically-minded community as HN.