[jordanmarshall]

HackerNews is listed as one of the directories. When I submitted my project (soon to be startup) I got a ton of support and advice, it was invaluable. That being said, I don't think it would have worked if I hadn't made a very personalized message and responded to all the comments.

[giarc]

Exactly, if you can't be bothered to submit it yourself and chat with potential users, or even just other makers providing feedback, then you probably won't succeed.

[stevekemp]

But it helps if you engage, and interact with commenters on your submission.

If you literally just posted a link and never visited it would likely have been a waste of time for you - and your potential users.