Most of these ideas will be an echo chamber for the niche needs of this niche crowd. HN itself identifies towards the tech-centric crowd, so most of these idea

Most of these ideas will be an echo chamber for the niche needs of this niche crowd. HN itself identifies towards the tech-centric crowd, so most of these ideas are already focused around some market + tech (or just tech for some marginal utility). Granted, some of these ideas sound cool. But why so? It's because of the echo-chamber in that "we" all find them cool on some level, and thus they become niche ideas in fragmented markets with demanding users and no possible financial gain. This is probably why it was stopped in the first place.