If you want to, you can email a draft to hn@ycombinator.com and we might be able to give some tips on what the HN community tends to respond better to.

Same offer goes for anyone who's working on something they hope will interest HN. Just don't be disappointed if you don't hear back for a long time—and as a corollary, don't send it just a couple days before you plan to publish. We have terrible worst-case latency!