Self-promotion is specifically encouraged on HN, as long as you're promoting a high-quality topic that is of interest to hackers, and as long as it's not done i

Self-promotion is specifically encouraged on HN, as long as you're promoting a high-quality topic that is of interest to hackers, and as long as it's not done in a spammy manner. There's even the "Show HN" section specifically for self-promotion.