I would like to float two ideas for boosting participation rates for existing members and for attracting new members to the platform:
Idea number one. Steemit implements a mechanism that allows subscribers/fans of content creators to make direct donations, think Patreon, etc.
Idea number two. Give those with entrepreneurial aspirations the tools necessary to sell and manage Merch through the Steem blockchain. This includes marketing, inventory control, communications, and other basic business activities.
The point I'm trying to make is Steemit Inc. should demonstrate clear opportunities and incentives for people to join and and educate the public at large of the rewards to be had for consistently producing quality. This will, in my opinion, increase the value of Steem and the market price should rise as a result. These ideas should be considered longer term solutions.