I’ll tell you my story anyway 
I put up the site… Had it up for 3 months prior to signup. However, I had not finalized content and optimized the site (SEO) until about 2 months and 1 week into it.
Once that was done and the search engines spidered, it took about 2-3 weeks prior to a signup.
I still do not have a ton of traffic NOR a ton of signups. Just a couple of signups and a little traffic.
Keep trying. It is work that will pay off. But make no mistake… It IS work.
Sometimes a bit trying.
kw