Perhaps you could, rather than taking criticism personally, use these comments as an opportunity to get a broader understanding of how others perceive your work.
I imagine it's a minority view here (well, pretty much everywhere), but I relish getting constructive criticism of my works, whether it's on a site like this or a review by my peers/customers/employers.
That's because I have my own perspective, point of view and view of the world. Others have different ones.
When other folks share their opinions/perspective, it gives me an opportunity to examine my own preconceptions -- which usually winds up giving me a better understanding of the topic at hand.
Granted, in a setting like HN, there will be those who will be uncharitable or dismissive, and those voices can be ignored.
However, those who criticize specific stuff and provide the assumptions/reasoning/thought processes behind those criticisms can provide valuable insight into how you and/or your product/service are perceived outside of your small circle of shared views and assumptions.
I hope the bulk of the comments here are of the latter kind rather than the former, and that you get new perspectives that can drive positive growth for your activities.