Some things take time to brew.
A good experimenter knows that, and doesn’t draw false conclusions when there are no immediate results.
A few examples
Two years ago, I created Tweetable Text, a simple Wordpress plugin that makes individual sentences in your blog post tweetable. The vision was a better way for good ideas to spread, and the minimum success criteria was a handful of installs in a few weeks. I got none, so I moved on.
Recently I googled for it, and found that it had lived on unbeknownst to me.