Rule #1: Talk/Blog about Steemit on your wordpress blog!
Why on earth is everyone explaining how Steemit works here on this platform and not explaining and posting backlinks on their wordpress blog?
What would assist in the hyper growth would be inbound posts from your blog. I think those advertisement blog posts would be ripe for many upvotes.
Take some time bloggers to profile Steemit on your wordpress blog with backlinks to steemit platform.
Make sure your anchor text says: Reditt Killer!