A note to any future startup founders reading some of the broadly skeptical and pessimistic comments on this HN discussion thread:

The people commenting here are not your customers.

For every 1 person posting a snarky comment, there are 100+ simply browsing the gift guide. A few are saying "Hey, that's neat!", and a few are making purchases today or in the near future, either for themselves or as gifts. It's their behavior that you should worry about.

If you think you can make something people want, then please focus on that. Don't let your non-customers discourage you.

(Disclosure: co-founder of https://www.pantelligent.com/ -- one of the products on the gift list.)