Great startup ideas spring from problems.
Plenty of people on HN have problems to solve.
Plenty of people on HN want to solve problems.
So, an experiment: share a pain point or problem you've had recently (even if it's more like a minor annoyance / not a tech-related problem) and maybe someone will think of a cool way of fixing it for you, prompting a slew of 'Show HN' posts to obliterate your problems.
If your life is completely pain free then more power to you, and soldier on, you lucky saint!