It doesn't appear to have failed because, according to the post, you didn't define what 'success' looks like. If you don't have a goal to measure your success against then you can't really fail. That's not very helpful though.
If the point of the launch was to go from nice-project-that-might-get-customers-one-day to actual-real-product-that-has-customers then yes, it was a failure. That's OK though, because a failure is only an event that didn't meet the criteria of success. You can try again, hopefully with a more successful pitch or a different audience and maybe meet your success criteria. At the very least you now know of one thing that doesn't work.
However...
You're on HN again with a blog post that barely mentions the product. There's no link to it. There's no opening line that says "I launched Validat.r and this is what happened" or a closing paragraph all about the product for people who see this post but didn't see the original one. Honestly, if you're going to leave that sort of really obvious stuff out of your marketing posts, why bother?