Ask HN: What product failed for you–and what went wrong?

What’s a product you built that didn’t work out? Everyone shares what worked. I’m equally curious about what didn’t.

If you’ve built something that didn’t take off, would you mind

#1. sharing the product, and

#2. in one sentence, what it was and why you think it didn’t work?

Good ideas are often counterintuitive. I’m curious what bad ideas look like.