I spent 3 weeks on "building in public" before launch and barely got any users from it

Posted daily progress updates, screenshots, behind-the-scenes stuff. Got likes, some nice comments, almost zero actual signups. Made me wonder if "build in public" is overrated for early traction, or if I was just doing it wrong.

For those who got real early users this way, what made the difference? Was it a specific platform, a different kind of content, or just consistency over a longer time than 3 weeks?