How are you tracking conversions? Also a dedicated landing page would definitely increase conversions on this.
If an incentivized referral program (like referralcandy, etc) was implemented, it would grow even faster.
Also a simple onboarding sequence upon sign-up, and a reactivation strategy (activating lapsed users via email) would increase daily active users.
Steemit is one of the few blockchain-based technologies that is ready for mass-market adoption right now. I believe this can be orchestrated if we work together to leverage proven growth strategies to shorten the road to critical mass.
Targeted campaigns specifically directed at influencers is another way to use leverage. When they come, they bring built-in groups of already-engaged followers.