But it's technical feedback, it's idea feedback, product feedback, it's not likely to seed your users or paying customers. And a lot of submissions go unnoticed.
I have not managed to work out (yet) how to craft such a submission for my OS project. Putting in the time and effort to get to the stage where a submission does generate interest/responses is the entry price that I need to pay, to earn those responses.
In the meantime browsing HN has become one of my main pleasures, and an education on subjects way beyond my comfort zone.
https://github.com/breck7/hn/blob/master/visualization%20(1)...
The good thing is often even posts that get just 1 or 2 upvotes or 1 or 2 comments, sometimes lead to the most meaningful offline impact.