I think the question you have to ask yourself when posting a project to HN is are you ready to receive blunt and sometimes uncivilized responses to your work(?). I think as long as you submit with that filter in full view that even when your work is chided relentlessly for some already obvious gap you can still sort through and determine legitimate criticisms. Say what you will about HN and its strong convictions and shallow snide callouts, but there are not a lot of avenues like it on the internet today for getting actionable feedback.